Hikari & GEX food comparison

Stage: juvenile/adult

Physical form: floating flakes

Maker protein / fat minimum: ≥46% / ≥14%

Label positioning and limitations: Everyday medaka staple; digestive/water-cleanliness statements unverified against an independent control

Original manufacturer listing ↗

Stage: fry (maker notes several weeks after hatch)

Physical form: fine floating flakes

Maker protein / fat minimum: ≥46% / ≥14%

Label positioning and limitations: Fry formula; maker's timing is not a universal earliest-feed day

Original manufacturer listing ↗

Stage: red/reflective adult lines

Physical form: floating flakes

Maker protein / fat minimum: ≥46% / ≥11%

Label positioning and limitations: Carotenoids and guanine claimed to sustain pigmentation/shine, not inherited traits

Original manufacturer listing ↗

Stage: breeding adults

Physical form: floating flakes

Maker protein / fat minimum: ≥45% / ≥14%

Label positioning and limitations: Breeding-stage formula; cleaner-water claim from maker not controlled survival proof

Original manufacturer listing ↗

Stage: breeding adults / pigmentation

Physical form: floating flakes

Maker protein / fat minimum: ≥45% / ≥14%

Label positioning and limitations: Breeding + color claims; no independent trial in this source

Original manufacturer listing ↗

Stage: temporary absence

Physical form: slow-softening sinking block

Maker protein / fat minimum: ≥52% / ≥7%

Label positioning and limitations: Maker markets approximately five-day unattended feed; tank context and safety not independently confirmed

Original manufacturer listing ↗

Stage: post-hatch 2–30 d (~5–10 mm maker guidance)

Physical form: tiny granules

Granule range: 0.1–0.25 mm

Maker protein / fat minimum: not published in cited maker page / not published in cited maker page

Label positioning and limitations: Fry microgranules, Japanese manufacturer details; age guideline not universal

Original manufacturer listing ↗

Stage: juvenile and adult

Physical form: slow-sinking microgranules

Granule range: 0.2–0.42 mm

Maker protein / fat minimum: not published in cited maker page / not published in cited maker page

Label positioning and limitations: Crustacean/fish/squid-meal staple; multiple package sizes same formula

Original manufacturer listing ↗

Stage: color management

Physical form: microgranules

Granule range: 0.23–0.42 mm

Maker protein / fat minimum: not published in cited maker page / not published in cited maker page

Label positioning and limitations: Astaxanthin listed for red coloration; no proof of genetic grade improvement

Original manufacturer listing ↗

Stage: juvenile/adult

Physical form: slow-sinking granules

Granule range: 0.3–0.6 mm

Maker protein / fat minimum: not published in cited maker page / not published in cited maker page

Label positioning and limitations: Economy 360-g staple; not same as Tokusen formula

Original manufacturer listing ↗

Stage: fry

Physical form: microgranules

Maker protein / fat minimum: ≥53% / ≥10%

Label positioning and limitations: Fry-oriented original series

Historical catalogue: current manufacture and US availability not verified.

Original manufacturer listing ↗

Stage: reflective adult strains

Physical form: microgranules

Maker protein / fat minimum: ≥53% / ≥10%

Label positioning and limitations: Nucleic-acid/guanine marketing for reflective appearance

Historical catalogue: current manufacture and US availability not verified.

Original manufacturer listing ↗

Stage: general adults during adjustment

Physical form: microgranules

Maker protein / fat minimum: ≥53% / ≥10%

Label positioning and limitations: Mannan/mucus-support label claims not proven protective outcomes

Historical catalogue: current manufacture and US availability not verified.

Original manufacturer listing ↗

Stage: breeding adults

Physical form: microgranules

Maker protein / fat minimum: ≥53% / ≥10%

Label positioning and limitations: Astaxanthin and egg-quality assertions are label claims

Historical catalogue: current manufacture and US availability not verified.

Original manufacturer listing ↗

Stage: red/pigment lines

Physical form: microgranules

Maker protein / fat minimum: ≥53% / ≥10%

Label positioning and limitations: Red-color enhancer label claim, not genetics

Historical catalogue: current manufacture and US availability not verified.

Original manufacturer listing ↗

Stage: newly hatched fry

Physical form: floating ultrafine granules

Maker protein / fat minimum: ≥60% / ≥10%

Label positioning and limitations: Copepods, krill meal, fish meal and papaya extract on manufacturer ingredient list; health benefit unverified

Original manufacturer listing ↗

Stage: breeding adults

Physical form: floating tiny granules

Maker protein / fat minimum: ≥50% / ≥11%

Label positioning and limitations: Contains krill meal, fish meal, astaxanthin, zinc yeast on maker label; breeder success claim unverified

Original manufacturer listing ↗

Stage: newly hatched fry

Physical form: fine powder

Maker protein / fat minimum: ≥50% / ≥7%

Label positioning and limitations: Powder for hatchlings; package 20 g

Original manufacturer listing ↗

Stage: newly hatched fry

Physical form: high-dispersion powder

Maker protein / fat minimum: ≥43% / ≥6%

Label positioning and limitations: Comet maker's garlic/Natto claims are not independent efficacy evidence

Original manufacturer listing ↗

Stage: fry/juveniles

Physical form: powder

Maker protein / fat minimum: ≥43% / ≥6%

Label positioning and limitations: 70 g refill format; might share ingredient family with Hariko; distinct seller-named formula pending label matching

Original manufacturer listing ↗

Stage: adult medaka

Physical form: manufacturer does not specify granule size in cited page

Maker protein / fat minimum: ≥40% / ≥3%

Label positioning and limitations: 40 g adult food with maker's garlic powder and probiotic claims

Original manufacturer listing ↗

Pet’sOne 赤ちゃんメダカのエサ

Granules: 0.03–0.125 mm

Seller guaranteed protein: ≥50%

Seller guaranteed fat: ≥10%

Claimed origin: Japan

Limitations: Maker factory undisclosed; no direct feeding performance study; retail 4-g packaging must not be equated with the 40/150-g CAINZ adult formula. Food-size suitability still requires observing fry ingestion.

Retailer original product record ↗

Pet’sOne 水が汚れにくいメダカのエサ

Granules: Not specified by retailer

Seller guaranteed protein: ≥40%

Seller guaranteed fat: ≥3%

Claimed origin: Taiwan

Limitations: First-party private-label page claims microbial improvement and 'half as much water fouling vs earlier version'; comparative water-quality protocol is not available in this source and cannot be accepted as independent validation. A 40-g listing is another pack size, not a new formulation. Factory and exact granule size unknown.

Retailer original product record ↗

ナフコ めだかのえさ 得用 300g

Granules: Not specified by retailer

Seller guaranteed protein: not verified; source contains malformed figure

Seller guaranteed fat: ≥5%

Claimed origin: Japan

Limitations: The official store nutrient line literally reads '粗タンパク質 480.%以上' (apparent typo). Do NOT silently convert that into 48.0% or 480%; source protein guarantee is left NULL pending package-label confirmation. Pack code and seller's own-brand identification verified. No independent controlled nutrition test.

Retailer original product record ↗

めだか膳 メディメダカIGA

Stage: juveniles, stressed/newly moved adult fish per maker; not an approved disease treatment; 40 g named pack

Nutrition guaranteed where source supports it: protein ≥54%, fat ≥10%

Limits and recipe overlap: Manufacturer lists krill, fishmeal, squid meal, β-glucan, egg-yolk powder, Toyoserin, lactic acid bacteria, astaxanthin. Claims supporting immunity, water quality and growth have NOT been independently established in this product trial. Seller availability is location/date dependent.

Original source ↗ · Additional label / seller ↗

メダカ成魚 高たんぱく13g

Stage: adult medaka; 13 g named pack

Nutrition guaranteed where source supports it: protein ≥50%, fat ≥7%

Limits and recipe overlap: Wholesaler provides JAN 4971453057216 and ingredients fishmeal, wheat flour, fish oil, soybean meal, shrimp/squid meal, seaweed, garlic and bacteria. Not the earlier catalogued 40%-protein adult staple. 50%/7% nutrition resembles some high-protein fry products; exact shared formulation not established.

Original source ↗ · Additional label / seller ↗

メダカ針子 高たんぱく8g

Stage: first-feeding medaka fry (hariko); 8 g named pack

Nutrition guaranteed where source supports it: protein ≥50%, fat ≥7%

Limits and recipe overlap: Retailer lists JAN 4971453057643 and fishmeal, wheat, fish oil, soybean meal, shrimp/squid, probiotics and garlic. Existing catalog already has Comet Hariko High Protein 20g with 50%/7%; cannot count as confirmed different recipe, only distinct named/packaged SKU pending package/JAN comparison.

Original source ↗ · Additional label / seller ↗

メダカの高栄養食30g

Stage: medaka, specific stage unknown; 30 g named pack

Nutrition guaranteed where source supports it: not confirmed from cited sources

Limits and recipe overlap: Maker's storefront lists this named product, but the verified index excerpt does not provide guaranteed analyses, ingredients or a unique formula identity. Do not invent them.

Original source ↗

日本改良めだか研究所オリジナルブレンド めだか乃餌

Stage: juveniles and adults according to retailer; 150 g named pack

Nutrition guaranteed where source supports it: not confirmed from cited sources

Limits and recipe overlap: Retailer attributes an original blend to the Japan Improved Medaka Research Institute and gives krill meal, fishmeal, lactic acid bacteria and brewer's yeast as main ingredients; full guaranteed analysis and upstream production are unverified. Not an independently tested feed.

Original source ↗

すこやか Bio+

Stage: fry

Particle size: maker size not verified

Maker-guaranteed analysis: maker analysis not verified

Evidence limits: First-party product description only, not a controlled comparative trial.

Identity and package overlap: Brand lists five phenotype groups for each life-stage family; stage family counts once, not five proven independent formulations.

Original producer/store evidence ↗

のびのび Bio+

Stage: growing juveniles

Particle size: maker size not verified

Maker-guaranteed analysis: maker analysis not verified

Evidence limits: First-party product description only, not a controlled comparative trial.

Identity and package overlap: Brand lists five phenotype groups for each life-stage family; stage family counts once, not five proven independent formulations.

Original producer/store evidence ↗

バイタル Bio+

Stage: adults

Particle size: maker size not verified

Maker-guaranteed analysis: maker analysis not verified

Evidence limits: First-party product description only, not a controlled comparative trial.

Identity and package overlap: Brand lists five phenotype groups for each life-stage family; stage family counts once, not five proven independent formulations.

Original producer/store evidence ↗

ブリーダーズ Bio+

Stage: breeding adults

Particle size: maker size not verified

Maker-guaranteed analysis: maker analysis not verified

Evidence limits: First-party product description only, not a controlled comparative trial.

Identity and package overlap: Brand lists five phenotype groups for each life-stage family; stage family counts once, not five proven independent formulations.

Original producer/store evidence ↗

和香特選めだか餌 極小粒

Stage: early fry

Particle size: 0.1–0.25 mm

Maker-guaranteed analysis: protein ≥53%, fat ≥10%

Evidence limits: First-party feed guide states guaranteed protein ≥53% and fat ≥10%; benefits for spawning, health or water cleanliness are maker assertions.

Identity and package overlap: Three distinct particle-size grades, but not proven different ingredient formula. Different package weights not separate.

Original producer/store evidence ↗

和香特選めだか餌 小粒

Stage: juvenile medaka

Particle size: 0.25–0.45 mm

Maker-guaranteed analysis: protein ≥53%, fat ≥10%

Evidence limits: First-party feed guide states guaranteed protein ≥53% and fat ≥10%; benefits for spawning, health or water cleanliness are maker assertions.

Identity and package overlap: Three distinct particle-size grades, but not proven different ingredient formula. Different package weights not separate.

Original producer/store evidence ↗

和香特選めだか餌 中粒

Stage: adult breeders

Particle size: 0.45–0.75 mm

Maker-guaranteed analysis: protein ≥53%, fat ≥10%

Evidence limits: First-party feed guide states guaranteed protein ≥53% and fat ≥10%; benefits for spawning, health or water cleanliness are maker assertions.

Identity and package overlap: Three distinct particle-size grades, but not proven different ingredient formula. Different package weights not separate.

Original producer/store evidence ↗

BARK スモール

Stage: smaller grade

Particle size: maker size not verified

Maker-guaranteed analysis: maker analysis not verified

Evidence limits: Maker reports floating probiotic grains; claimed disease protection is unverified.

Identity and package overlap: BARK Small and Regular are two sold size grades, not necessarily separate recipes.

Original producer/store evidence ↗

BARK レギュラー

Stage: regular grade

Particle size: maker size not verified

Maker-guaranteed analysis: maker analysis not verified

Evidence limits: Maker describes line-wide 0.2–0.4mm manufacturing details but per-SKU particle measurements are unverified.

Identity and package overlap: Regular and Small may use same core formulation.

Original producer/store evidence ↗

とびきりめだかフード 稚魚・幼魚用

Stage: juveniles around 1cm

Particle size: maker size not verified

Maker-guaranteed analysis: maker analysis not verified

Evidence limits: Shop states Medaka Works supervised formulation; no independent feeding trial or full guarantee included.

Identity and package overlap: 20g and 75g are package alternatives, not independently proven separate formula.

Original producer/store evidence ↗

とびきりめだかフード 成魚・親魚用

Stage: adult medaka ~1.5cm or more

Particle size: maker size not verified

Maker-guaranteed analysis: maker analysis not verified

Evidence limits: Maker's complete diet/life-stage suitability claims not matched to independent trials.

Identity and package overlap: 20g and 75g are package alternatives for same stage product.

Original producer/store evidence ↗

超微粒子 稚魚究極の餌

Stage: fry

Particle size: less than 0.1 mm (seller claim)

Maker-guaranteed analysis: maker analysis not verified

Evidence limits: Seller describes feed below 0.1mm; not independent particle measurements. A fixed day-3 first feeding rule is unproven.

Identity and package overlap: 100g and 200g packages of one named fry offering.

Original producer/store evidence ↗

微粒子 成魚究極の餌

Stage: adult

Particle size: 0.2–0.3 mm

Maker-guaranteed analysis: maker analysis not verified

Evidence limits: Brand-owner describes betaine, garlic, spirulina, Euglena, DHA/EPA; disease or growth benefit not independently verified.

Identity and package overlap: 100g and 200g of same named adult food.

Original producer/store evidence ↗

めだかの餌 リッチC

Stage: medaka unspecified stage

Particle size: maker size not verified

Maker-guaranteed analysis: maker analysis not verified

Evidence limits: Floating high-protein feed; label does not disclose verified protein/fat percentage or factory recipe.

Identity and package overlap: Two shop listings are the same Rich C 100g product with different shipping eligibility.

Original producer/store evidence ↗

Japanese name: 幼魚の餌【色揚げ用】

Stage: juvenile/color

Kind: complete feed label

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Seller-listed medaka-specific product. Manufacturer Fols identified for adult formula. Disease prevention, water cleanliness, breeder survival and probiotic claims NOT verified; exact composition/analysis per version not independently audited. Japanese retailer stock does not establish US availability.

Original producer / seller source ↗

Japanese name: アルティメットめだかフード HITOTSU

Stage: juvenile through adult

Kind: complete feed label

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Seller-listed medaka-specific product. Manufacturer Fols identified for adult formula. Disease prevention, water cleanliness, breeder survival and probiotic claims NOT verified; exact composition/analysis per version not independently audited. Japanese retailer stock does not establish US availability.

Original producer / seller source ↗

Japanese name: 針子の餌

Stage: newborn fry

Kind: fry feed

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Seller-listed medaka-specific product. Manufacturer Fols identified for adult formula. Disease prevention, water cleanliness, breeder survival and probiotic claims NOT verified; exact composition/analysis per version not independently audited. Japanese retailer stock does not establish US availability.

Original producer / seller source ↗

Japanese name: 針子の餌Plus

Stage: newborn fry

Kind: fry feed

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Seller-listed medaka-specific product. Manufacturer Fols identified for adult formula. Disease prevention, water cleanliness, breeder survival and probiotic claims NOT verified; exact composition/analysis per version not independently audited. Japanese retailer stock does not establish US availability.

Original producer / seller source ↗

Japanese name: 幼魚の餌

Stage: juvenile

Kind: juvenile feed

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Seller-listed medaka-specific product. Manufacturer Fols identified for adult formula. Disease prevention, water cleanliness, breeder survival and probiotic claims NOT verified; exact composition/analysis per version not independently audited. Japanese retailer stock does not establish US availability.

Original producer / seller source ↗

Japanese name: 成魚の餌

Stage: adult

Kind: adult feed

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Seller-listed medaka-specific product. Manufacturer Fols identified for adult formula. Disease prevention, water cleanliness, breeder survival and probiotic claims NOT verified; exact composition/analysis per version not independently audited. Japanese retailer stock does not establish US availability.

Original producer / seller source ↗

Japanese name: めだかサプリ

Stage: unspecified / supplemental

Kind: supplement not complete diet

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Seller-listed medaka-specific product. Manufacturer Fols identified for adult formula. Disease prevention, water cleanliness, breeder survival and probiotic claims NOT verified; exact composition/analysis per version not independently audited. Japanese retailer stock does not establish US availability.

Original producer / seller source ↗

Japanese name: 痩せ細りを防ぐ餌

Stage: underweight fish marketed

Kind: health marketing unverified

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Seller-listed medaka-specific product. Manufacturer Fols identified for adult formula. Disease prevention, water cleanliness, breeder survival and probiotic claims NOT verified; exact composition/analysis per version not independently audited. Japanese retailer stock does not establish US availability.

Original producer / seller source ↗

Japanese name: PSBと乳酸菌のチカラ

Stage: general fish / seller exclusive

Kind: microbial marketing unverified

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Seller-listed medaka-specific product. Manufacturer Fols identified for adult formula. Disease prevention, water cleanliness, breeder survival and probiotic claims NOT verified; exact composition/analysis per version not independently audited. Japanese retailer stock does not establish US availability.

Original producer / seller source ↗

Japanese name: 極桜

Stage: juvenile/adult

Kind: co branded feed

Protein / fat: ≥48% / ≥7%; particles: ~0.15 mm nominal

Evidence limits: Kurosawa feeds sold through Sakura Medaka, some with maker formulation statement. Color/shine or breeding effectiveness is commercial positioning; no independent controlled product study. Powder and multiple granule sizes may be the SAME formula, not additional foods.

Original producer / seller source ↗

Japanese name: 極

Stage: fry through adult; separate particle-size variants

Kind: staple

Protein / fat: ≥52% / ≥10%; particles: not verified

Evidence limits: Kurosawa feeds sold through Sakura Medaka, some with maker formulation statement. Color/shine or breeding effectiveness is commercial positioning; no independent controlled product study. Powder and multiple granule sizes may be the SAME formula, not additional foods.

Original producer / seller source ↗

Japanese name: 深紅

Stage: red medaka

Kind: pigment feed

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Kurosawa feeds sold through Sakura Medaka, some with maker formulation statement. Color/shine or breeding effectiveness is commercial positioning; no independent controlled product study. Powder and multiple granule sizes may be the SAME formula, not additional foods.

Original producer / seller source ↗

Japanese name: 和

Stage: cool season

Kind: seasonal feed

Protein / fat: ≥35% / ≥3%; particles: ~0.3 mm nominal

Evidence limits: Kurosawa feeds sold through Sakura Medaka, some with maker formulation statement. Color/shine or breeding effectiveness is commercial positioning; no independent controlled product study. Powder and multiple granule sizes may be the SAME formula, not additional foods.

Original producer / seller source ↗

Japanese name: 朱

Stage: red medaka

Kind: pigment feed

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Kurosawa feeds sold through Sakura Medaka, some with maker formulation statement. Color/shine or breeding effectiveness is commercial positioning; no independent controlled product study. Powder and multiple granule sizes may be the SAME formula, not additional foods.

Original producer / seller source ↗

Japanese name: 雅

Stage: growing/breeding

Kind: staple

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Kurosawa feeds sold through Sakura Medaka, some with maker formulation statement. Color/shine or breeding effectiveness is commercial positioning; no independent controlled product study. Powder and multiple granule sizes may be the SAME formula, not additional foods.

Original producer / seller source ↗

Japanese name: 桜

Stage: general

Kind: health marketing unverified

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Kurosawa feeds sold through Sakura Medaka, some with maker formulation statement. Color/shine or breeding effectiveness is commercial positioning; no independent controlled product study. Powder and multiple granule sizes may be the SAME formula, not additional foods.

Original producer / seller source ↗

Japanese name: 黄

Stage: yellow medaka

Kind: pigment feed

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Kurosawa feeds sold through Sakura Medaka, some with maker formulation statement. Color/shine or breeding effectiveness is commercial positioning; no independent controlled product study. Powder and multiple granule sizes may be the SAME formula, not additional foods.

Original producer / seller source ↗

Japanese name: 墨

Stage: black medaka

Kind: pigment feed

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Kurosawa feeds sold through Sakura Medaka, some with maker formulation statement. Color/shine or breeding effectiveness is commercial positioning; no independent controlled product study. Powder and multiple granule sizes may be the SAME formula, not additional foods.

Original producer / seller source ↗

Japanese name: 三色

Stage: three-color medaka

Kind: pigment feed

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Kurosawa feeds sold through Sakura Medaka, some with maker formulation statement. Color/shine or breeding effectiveness is commercial positioning; no independent controlled product study. Powder and multiple granule sizes may be the SAME formula, not additional foods.

Original producer / seller source ↗

Japanese name: 虹

Stage: lame/reflective medaka

Kind: shine marketing unverified

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Kurosawa feeds sold through Sakura Medaka, some with maker formulation statement. Color/shine or breeding effectiveness is commercial positioning; no independent controlled product study. Powder and multiple granule sizes may be the SAME formula, not additional foods.

Original producer / seller source ↗

Japanese name: リッチA

Stage: fry

Kind: repacked aquaculture feed

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Product explicitly sold in medaka fry size but manufacturer identity, complete-diet ingredients and whether identical to bulk aquaculture feed require original-label verification.

Original producer / seller source ↗

Japanese name: リッチB

Stage: adult

Kind: repacked aquaculture feed

Protein / fat: not confirmed / not confirmed; particles: not verified

Evidence limits: Sold as adult medaka size; a separate bulk listing inconsistently states fry size. Clarify with actual original package before claiming exact stage or original manufacturer formula.

Original producer / seller source ↗

Japanese name: 亀田養魚 メダカのエサ

Stage: medium/large adults and breeding

Kind: breeder first person feed

Protein / fat: ≥50% / ≥6%; particles: 0.2–0.36 mm

Evidence limits: Fish farm reports feeding this ration to its own fish. Its 250g and 2kg packs are one recipe. Outside manufacturer unknown; crushing for fry is not an independently validated newborn formula.

Original producer / seller source ↗

ベッツラボ アドバンスフード めだか

Form: fine granulated food, manufacturer particle size not located · Particle size: Unpublished

Declared nutrients: Protein ≥54%; fat ≥10%

Listing class: Wholesaler/distributor record — original maker page still needed

Limitations: Owned by Japan Pet Communications. Protein shown as 54.0% in supplier's guaranteed analysis, crude fat 10.0% or more. Seller's hatch/egg-membrane and water-fouling assertions are unvalidated marketing claims. Cannot label as maker-site-confirmed.

Original Japanese product source ↗

メダカのエサ

Form: slow-sinking semi-floating pellets · Particle size: Unpublished

Declared nutrients: Protein ≥43%; fat ≥3%

Listing class: Retailer's original branded listing — feed factory may be a third party

Limitations: Same 43%/3% guaranteed analysis and ingredients appear under another official DAISO JAN 4967574600233; count as one provisional formula family, not independent recipes. Package/producer identity not proven.

Original Japanese product source ↗

メダカのエサ フレークタイプ

Form: fine flakes, initial flotation then slow sink · Particle size: Unpublished

Declared nutrients: Not verified in the cited online record

Listing class: Retailer's original branded listing — feed factory may be a third party

Limitations: Maker page lists food ingredients and floating/sinking behavior but not full guaranteed protein/fat; keep nutrient fields null. Maker's clearer-water and coloration statements untested.

Original Japanese product source ↗

メダカと金魚の稚魚用

Form: fine particle slow-sinking powdered food · Particle size: Unpublished

Declared nutrients: Not verified in the cited online record

Listing class: Retailer's original branded listing — feed factory may be a third party

Limitations: Intended for medaka AND goldfish fry, not medaka-only. Source's absolute nutritional-completeness assertion has no replicated breeder study linked. First food should follow actual yolk absorption and observed prey ingestion.

Original Japanese product source ↗

アドバンスフード めだかの赤ちゃん

Stage: newly feeding fry; form: microgranules; maker pack: 20 g

Particle size: 0.15–0.24 mm

Guaranteed nutrients from maker: protein ≥54%, fat ≥10%

Evidence boundaries: Distinct medaka baby-labelled SKU from already-indexed Vet's Labo adult 0.42–0.62 mm food; both share 54%/10% analyses but exact recipe difference is not established. Egg membrane, health, immunity, color and survival assertions are company marketing, not independent trials.

Original manufacturer or breeder-producer ↗

メダカの粉餌 針子用

Stage: newly hatched fry; form: powdered microgranules; maker pack: 20 g

Particle size: ≤0.2 mm

Guaranteed nutrients from maker: not confirmed as a maker minimum

Evidence boundaries: Manufacturer confirms separate powder SKU S-6740 with ≤0.20-mm size; not the same named Tokusen Fry product (0.10–0.25 mm). Wholesaler supplies >=38% protein >=3% fat for this SKU, but original manufacturer page does not show them; no manufacturer-verified guarantee entered. 20g/60g are not two formulas.

Original manufacturer or breeder-producer ↗ · Additional producer/seller source ↗

MEDAKA FOOD 稚魚用

Stage: newly hatched and early fry; form: ultrafine dispersing powder; maker pack: 40 g

Particle size: not stated on this maker page

Guaranteed nutrients from maker: not confirmed as a maker minimum

Producer-reported crude analysis (not stated as a guaranteed minimum): protein 50%, fat 6%

Evidence boundaries: HIROSE explicitly says all its own sales/rearing fry receive this product. Source publishes crude protein 50% and fat 6% but does not clearly label them minima; store directions are 3–4 very small feeds daily. Claimed fry survival benefit has no matched control or complete ingredient label. Both HIROSE foods share analysis but differ in named stage and form; recipe independence unverified.

Original manufacturer or breeder-producer ↗ · Additional producer/seller source ↗

MEDAKA FOOD 育成・繁殖用

Stage: growing juveniles, adults, spawning stock; form: small pellets/granules; maker pack: 40 g

Particle size: not stated on this maker page

Guaranteed nutrients from maker: not confirmed as a maker minimum

Producer-reported crude analysis (not stated as a guaranteed minimum): protein 50%, fat 6%

Evidence boundaries: HIROSE says all its own adult medaka for breeding/sale receive this diet, making it firsthand in-house practice, not independent feeding trial. The same 50%/6% printed analysis as its fry product does not prove identical recipe. Low-fouling/growth/reproduction claims are commercial assertions, not replicated comparisons.

Original manufacturer or breeder-producer ↗ · Additional producer/seller source ↗

Stage: Medaka fry / newly feeding babies

Food form: Fine powder

Package identifiers: 20 cc (JAN 4571340820437)

Crude protein/fat and particle size: Not stated by this original manufacturer page.

Manufacturer statements — NOT independent feeding results: Maker states a soft, fine powder with enzymes, yeast and lactic-acid bacteria. Advertises digestion, growth and low water clouding; no controlled medaka trial cited.

OCTO Japan official medaka catalog ↗

Stage: Medaka adults and breeding fish

Food form: Prepared medaka feed (manufacturer does not state exact particle size)

Package identifiers: 20 g (JAN 4571340820246); 60 g (JAN 4571340820253)

Crude protein/fat and particle size: Not stated by this original manufacturer page.

Manufacturer statements — NOT independent feeding results: Maker advertises unheated processing, lactic/butyric bacteria, calcium and vitamins, and enhanced breeding. No independently controlled reproductive outcome or nutrient guarantee published on this page.

OCTO Japan official medaka catalog ↗

メダカの舞 ネクスト

Reported use: juvenile_growth

Form: granule

Manufacturer guarantees: Protein / fat minimum: 48% / 12%

Japan catalog reference: 100 g ¥1,518

Limits: Manufacturer targets juveniles, not newly hatched fry; 48%/12% are label minima, not independent optimum.

Manufacturer record ↗

メダカの舞 コンプリート

Reported use: adult_broodstock

Form: granule

Manufacturer guarantees: Protein / fat minimum: 48% / 12%

Japan catalog reference: 100 g ¥1,518

Limits: Higher nutrient density does not establish best daily food for every adult or a verified hatch rate advantage.

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メダカの舞 ブリード

Reported use: breeding

Form: granule

Manufacturer guarantees: Protein / fat minimum: 50% / 11%

Japan catalog reference: 90 g ¥1,518

Limits: Enriched fatty acids/phospholipids are manufacturer formulation claims; reproductive improvement is not independently verified for this brand.

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メダカの舞 スーパーオレンジ

Reported use: pigment

Form: granule

Manufacturer guarantees: Protein / fat minimum: 48% / 12%

Japan catalog reference: 100 g ¥1,518

Limits: Color-enhancement marketing relates to pigment expression in relevant phenotypes; feed does not change inherited genotype.

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メダカの舞 メンテナンス

Reported use: maintenance_cool_season

Form: granule

Manufacturer guarantees: Protein / fat minimum: 38% / 7%

Japan catalog reference: 90 g ¥1,518

Limits: Do not treat label recommendation to feed every 3–7 days in cold water as a universal calendar; observe temperature, fish behavior and oxygen.

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メダカのエサ 産卵繁殖用

Reported use: breeding

Form: granule

Manufacturer guarantees: Protein / fat minimum: 51% / 10%

Japan catalog reference: 130 g ¥1,045, 330 g ¥2,805

Limits: DISTINCT product from Medaka no Mai Breed and Medaka Pros Breeding; keep nutrition and IDs separate.

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メダカプロス

Reported use: daily_probiotic

Form: floating_flake

Manufacturer guarantees: Protein / fat minimum: 46% / 7%

Japan catalog reference: 140 g ¥1,518

Limits: Microbial waste-breakdown claims are manufacturer level and do not replace filtration, water changes or uneaten-food removal.

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ひかりメダカフレーク

Reported use: daily

Form: floating_flake

Manufacturer guarantees: Protein / fat minimum: 42% / 3%

Japan catalog reference: 60 g ¥484, 230 g ¥1,408

Limits: Dietary pigment sources do not imply all lineages will show stronger color; manufacturer formula differs from Medaka Pros.

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メダカ幼魚 ハイパー育成

Reported use: juvenile_growth

Form: high-floating_granule

Manufacturer guarantees: Protein / fat minimum: 48% / 12%

Japan catalog reference: 70 g ¥1,106

Limits: Juvenile product for fish >10 mm, NOT the separate newly hatched Baby Hyper Growth product.

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教材メダカのエサ

Reported use: daily

Form: water-stable_microgranule

Manufacturer guarantees: Protein / fat minimum: 48% / 5%

Japan catalog reference: 50 g ¥435, 150 g ¥682, 400 g ¥1,584

Limits: Educational denotes classroom/observation positioning; does not improve intelligence or replace ultra-fine newly hatched fry diets.

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メダカ元気 育てる栄養フード

Reported use: daily

Form: flake

Manufacturer guarantees: Protein / fat minimum: current formula not independently verified

Japan catalog reference: 52 g ¥530

Limits: In-house palatability/growth/water improvements are manufacturer experiments, not independently replicated cross-brand superiority.

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メダカ元気 彩姫 成長用

Reported use: juvenile_growth

Form: soft_granule

Manufacturer guarantees: Protein / fat minimum: current formula not independently verified

Japan catalog reference: 100 g ¥790

Limits: GEX-reported 33% growth improvement is a manufacturer internal comparison and cannot be generalized to other husbandry.

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メダカ元気 彩姫 極上

Reported use: adult_daily

Form: soft_granule

Manufacturer guarantees: Protein / fat minimum: 50% / 7%

Japan catalog reference: 100 g ¥603

Limits: GEX internal 25% body-mucus increase does not prove disease prevention in field use; manufacturer lists 50%/7% minimum.

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メダカ元気 彩姫 産卵・繁殖用

Reported use: breeding

Form: soft_granule

Manufacturer guarantees: Protein / fat minimum: current formula not independently verified

Japan catalog reference: 100 g ¥790, 1000 g ¥4,370

Limits: One formulation sold in multiple pack sizes; ~2x egg count is GEX internal comparison, not independently demonstrated benefit.

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メダカ元気 プロバイオフードクリア

Reported use: daily_probiotic

Form: slow_sinking_granule

Manufacturer guarantees: Protein / fat minimum: current formula not independently verified

Japan catalog reference: 130 g ¥430

Limits: Bacterial/water-clarity effects are manufacturer claims; do not present as a replacement for filtration or measured water quality.

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メダカ元気 繁殖・成長用 プロバイオフード

Reported use: breeding_and_growth

Form: granule

Manufacturer guarantees: Protein / fat minimum: current formula not independently verified

Japan catalog reference: 130 g ¥379

Limits: A retailer lists 48% protein/6% fat for an older ingredient panel without insect meal, but GEX reports package/formula change. Current guaranteed analysis unresolved; never merge versions.

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