AQUAPEDIA / FEEDING EVIDENCE
Shrimp food and feeding science
18 U.S.-market breeder, producer or hobby observations. Neocaridina, soft-water bee Caridina and specialist filter feeders are discussed separately; peer-reviewed outcomes are distinguished from advertising.
FIRST-PARTY AMERICAN EVIDENCE
Documented U.S. Shrimp breeder and facility feeding
These are first-party accounts at five identifiable U.S. ornamental fish/shrimp operations, not a national sample. Named diets count only when the operator says it feeds them. Retail stock is not evidence of feeding in farm tubs. Reused product-page text is not an independent observation. All claims are attributed; no breeder was contacted.
Flip Aquaticsbreeder first person feeding
Reported foods or recommendation: NorthFin Veggie; NorthFin Community; NorthFin Bug Pro; Kelp Wafers
Reported schedule: Not published by source
Scope: Neocaridina davidi (multiple color strains, including in-house bred listings)
Limits: May include quarantined imported stock as well as US-bred stock; exact formula, portion, frequency, nutritional outcome and batch-specific source not stated.
Provenance: First-party 'What we feed' appears across product pages; repeated identical copy is a single facility-level practice, not many independent breeders.
Flip Aquaticspossible reused listing template
Reported foods or recommendation: NorthFin Veggie; NorthFin Community; NorthFin Bug Pro; Kelp Wafers
Reported schedule: Not published by source
Scope: Mixed assorted Caridina (Taiwan Bee, Tiger, Crystal; shop listing)
Limits: Do not infer all bee Caridina are kept at listed Neocaridina water parameters or that this is independently witnessed Caridina broodstock regimen.
Provenance: The mixed Caridina SKU repeats the identical 'What we feed' block AND Neocaridina-style pH/GH/KH/TDS across listings; treat as possibly templated copy until confirmed.
Shrimpy Businessbreeder first person feeding self marketed
Reported foods or recommendation: Shrimpy Party; Protein Party; Snowflake Party / soybean hulls
Reported schedule: Describes rotating Shrimpy Party and Protein Party during daily feedings; separate Snowflake Party page adds it to the rotation; exact tank-by-tank days unspecified.
Scope: Freshwater ornamental shrimp, species not exhaustively separated by product page
Limits: Claims growth, immune improvement and breeding support are marketing/experience, not outcome-validated against competing brands; remove excess after 4–6h per producer.
Provenance: Shop states 'These are the same food we feed to all our shrimp' on its own branded products. This is a first-party seller statement with financial interest, not independent trial.
Shrimp Envybreeder first person feeding self marketed
Reported foods or recommendation: Complete Envy; Food Fight Grazing Food; Shell Envy Mineral; Growth Envy Protein; Baby Envy Powder; Monti-Clay
Reported schedule: Seller: Complete or Food Fight every other day; alternate Shell Envy and Growth Envy weekly; Baby Envy on non-pellet days when young present; Monti-Clay after water changes.
Scope: Caridina and Neocaridina (brand's stated shrimp kept)
Limits: One small pellet/30–40 shrimp every other day and removal after 3–4 hours are seller directions, not universal optimum. No controlled comparison/lot nutritional composition.
Provenance: Actual stated regimen from product pack; company owners publicly describe developing food for their Caridina; US location independently stated on their own contact page.
U.S. OPERATOR EVIDENCE / BATCH 3
More American shrimp feeding routines and source checks
Five new first-party source records from four additional U.S. operations plus a follow-up on Flip Aquatics. These are business self-reports, NOT independently measured dietary effects or a representative popularity sample. Statements from the same shop may describe different tanks or marketing copy. Disputed details remain marked.
Flip AquaticsWarren, Ohio · first party rotation conflicts with other listing
Source-reported feeding: Flip Aquatics says its own rotation uses Complete Envy three of five feedings, Shell Envy one of five, Growth Envy one of five.
Foods: Shrimp Envy Complete Envy; Shrimp Envy Shell Envy; Shrimp Envy Growth Envy
Species and stage: Neocaridina; shop-level rotation not proven for every tank
Confidence and limitations: Other Flip livestock pages say the shop feeds NorthFin Veggie, Community, Bug Pro and kelp wafers. These first-party descriptions may refer to distinct tanks, periods or promotional templates. Neither statement proves exclusive use or measured results; ask breeder to reconcile, do not silently choose one.
Fresh Frequencies Aquarium ServicesLas Vegas, Nevada · first party tank specific feed
Source-reported feeding: The Yellow Racerback Neocaridina livestock page describes its own Matten-filtered, planted tank and states these shrimp are fed Shrimp King, GlasGarten foods and NorthFin Veggie.
Foods: Shrimp King (formula unspecified); GlasGarten foods (formula unspecified); NorthFin Veggie
Species and stage: Yellow Neocaridina; USA-bred and imported variants explicitly distinguished
Confidence and limitations: Retail/service operator also sells imported stock. No lot, actual SKU for Shrimp King or GlasGarten, ration, stage-specific formula, or controlled performance outcome. Does not prove this menu applies to every line.
Teacher's PetPortland metropolitan area, Oregon · first party species specific feeding
Source-reported feeding: Caridina breeder guide states it feeds every other day, removes uneaten feed after a few hours, promotes biofilm and distributes powder/snowflake food so juveniles can feed without pellet competition.
Foods: biofilm/mature moss and plants; Bacter AE as optional biofilm support; varied shrimp food or flakes; blanched vegetables; occasional frozen/live bloodworms or daphnia; juvenile powder and snowflake foods
Species and stage: Caridina bee/Taiwan-bee type breeding operation
Confidence and limitations: Product examples are broad recommendations and not a complete verified SKU purchase log. Keep Caridina-specific water parameters separate from Neocaridina. Its 2026 business update says primary focus is Caridina, with common Neocaridina business shifting to another operator.
Errly AquaticsUnited States (operates U.S. shipping, hosted a 2026 Charlotte event; farm state unverified) · first party general rotation no quantities
Source-reported feeding: In its August 2026 Neocaridina guide, operator says it uses different Shrimp Envy foods, uses Bacter AE as a biofilm-supporting supplement and relies on established natural grazing.
Foods: several Shrimp Envy foods, formulas not individually listed; Bacter AE for biofilm support; natural biofilm and botanicals; vegetables and suitable supplementary foods
Species and stage: Neocaridina breeding colonies
Confidence and limitations: U.S. event attendance does not prove farming location or specific weekly portions. Biofilm additives' effects remain product claims rather than independent controlled shrimp survival trials. Product rotation is not quantified.
Garden City GuppiesAugusta, Georgia · first party care guide mixed product categories
Source-reported feeding: A first-party care guide says pellets every other day, vegetables weekly and permanent leaf/wood biofilm surfaces.
Foods: Shrimp King and Hikari pellets (unspecified exact variant); Bacter AE powder (misclassified as a pellet in source text); blanched spinach, zucchini and mulberry; oak leaves or cholla wood
Species and stage: Neocaridina, breeder-written care guidance
Confidence and limitations: The same passage groups Bacter AE with 'pellets' although it is a powdered microbial/biofilm-support product, indicating a source error. Other confident care claims on this page (exact TDS death thresholds, molting diagnosis, medication) are not verified and MUST NOT be incorporated as Aquapedia care guidance. Treat as a lower-confidence feed-practice lead until independently confirmed.
PRIMARY EVIDENCE / BATCH 4
Controlled shrimp diets vs. biofilm product claims
Bacter AE is a microfine water/biofilm additive, not a shrimp pellet. For 120 L at normal stocking, GlasGarten lists one approximately 0.5 g scoop daily, whereas a U.S. retailer lists half a scoop weekly. These are conflicting commercial instructions, not two independent efficacy tests. Aquapedia does not blend them into a universal feeding dose. Original manufacturer ↗ · U.S. seller ↗
Actual additive ingredients on manufacturer label: amino acids, polysaccharides, digestive enzymes, Bacillus subtilis and Pediococcus acidilactici. Statements about biofilm, pollutant removal and shrimplet survival are supplier claims without a directly matched controlled retail-product trial. Avoid heavy organic loading and monitor oxygen and ammonia.
2020 natural biofilm experiment: a Neocaridina life cycle was supported in a deliberately constructed microbe/algae grazing culture on selected surfaces, with different juvenile outcomes by substrate. This is not evidence that an off-the-shelf probiotic powder duplicates the system. Viau et al. 2020 ↗
2025 black soldier fly meal experiment: Five complete feeds at about 42% protein replaced 0, 25, 50, 75 or 100% of fishmeal with insect meal. The 50%-replacement arm was actually 21.68% insect meal by dry complete-feed weight; growth gains were not significant against every comparator, and reproduction/color did not show significant changes. Do not claim a 50% final-diet insect-meal optimum. Azhar et al. 2025 ↗
2024 astaxanthin experiment: in juvenile male red cherry shrimp, some experimental astaxanthin diets changed measured redness and stress color retention. This does not change hereditary strain grade or validate a branded color-boosting product. The experimental low-oxygen challenge must not be imitated in a home aquarium. Hou et al. 2024 ↗
RESEARCH / FEEDING BATCH 5
Shrimplet survival — what was actually tested
Two newly indexed experiments; three earlier papers reassessed. Commercial Bacter AE effectiveness on newly hatched Neocaridina remains unverified in the reviewed studies. A mature moss biofilm, a maternal commercial diet and an added powdered bacterial product are different experimental treatments.
Direct-developing freshwater shrimp: newly hatched Neocaridina and ornamental bee/Taiwan-bee Caridina are benthic juveniles. Amphidromous Caridina: species such as Amano (Caridina multidentata) produce a different, plankton-feeding larval stage. Rotifer / cultured Tetraselmis results for amphidromous larvae do not define a bee-shrimp feeding schedule.
Evidence needed for Bacter AE: independent replicated tank comparisons against the same mature biofilm and identical complete feed, with initial juvenile counts, days 7/14/30/60 survival, dry-feed/powder amounts, dissolved oxygen and ammonia. Do not deliberately stress animals or assume product claims have been tested.
Natural-food treatments and ornamental Neocaridina survival (2025)NEW PRIMARY STUDY · Neocaridina sp. (species and exact grade not established in the published summary)
Life stage: Experimental ornamental shrimp, NOT established as a controlled freshly hatched shrimplet cohort
What researchers tested: 40 days; four treatments: Tubifex worms, Chironomus larvae, Daphnia and spirulina pellets as control; randomized design, three replicate aquaria per treatment, one shrimp per liter, feed described as ad libitum.
Results: Highest survival was reported with Tubifex: 85.00 ± 7.07%, versus 72.50 ± 2.88% for spirulina control. Food type influenced survival and color (authors report P<0.05), not length or mass (P>0.05).
Does not establish: Does NOT prove Tubifex is an optimal complete diet, risk-free live food, or enhances Neocaridina newborn survival. Other potential explanations include feed palatability/intake and sourcing differences. The trial identifies only Neocaridina sp. not specifically Neocaridina davidi.
Evidence quality: Direct controlled study: four food sources; limited generalizability, three aquaria per treatment.
Rotifers and cultured phytoplankton for amphidromous Caridina larvae (2020)NEW PRIMARY STUDY · Caridina leucosticta, Caridina multidentata, Caridina serratirostris, Caridina typus
Life stage: Free-swimming amphidromous larvae before juvenile metamorphosis, NOT direct-developing Caridina bee shrimp or Neocaridina shrimplets.
What researchers tested: Laboratory comparison of cultured versus preserved Tetraselmis phytoplankton, rotifers, and combinations on larval survival, duration and metamorphosis.
Results: Rotifers substantially improved survival/development of C. multidentata and C. typus with suitable cultured phytoplankton; C. leucosticta could complete larval development with cultured phytoplankton alone; C. serratirostris died during molting after entrapment at the water surface in this experimental setup.
Does not establish: Cannot generalize plankton requirements to bee/Taiwan bee ornamental Caridina juveniles that hatch as benthic miniatures; brackish or marine larval culture depends on species and habitat. Surface tension deaths were a separate failure mechanism.
Evidence quality: Direct controlled species-resolved larval study, not a freshwater-born shrimplet feeding trial.
Moss substrate and survival in Neocaridina newly hatched juveniles (2022)PREVIOUS STUDY / CROSS-CHECK · Neocaridina davidi
Life stage: Recently hatched juveniles, followed for 90 days
What researchers tested: Vesicularia moss, Ceratophyllum, Cabomba and a green plastic net as distinct substrates; 90-day outcome tracking.
Results: Survival ~90% with Vesicularia moss vs approximately 60% in the other tested substrate conditions; growth timing differed and Ceratophyllum group had 10% ovigerous females vs 30–48% elsewhere.
Does not establish: Moss is both habitat and a microbial/periphyton surface. Without controlling pathogens and attached feeding separately, study does not prove that adding a bottled microbial powder raises survival.
Evidence quality: Peer-reviewed controlled substrate study; previously included in Aquapedia and reinterpreted here, NOT a new independent record of brand effectiveness.
Three commercial maternal diets and offspring quality (2020)PREVIOUS STUDY / CROSS-CHECK · Neocaridina davidi
Life stage: Broodstock females, eggs, juvenile I and 32-day-old offspring
What researchers tested: Compared commercial diets A/B/C; measured fecundity, egg carotenoids, juvenile lipids, restriction survival and later juvenile weight.
Results: Egg carotenoid content was 40% and 52% lower under diets B and C versus A. Reported relative actual fecundity differences 59% and 47% were NOT statistically significant. Lower later juvenile weight appeared under diet C; initial juvenile mass and food-restriction survival were similar.
Does not establish: Cannot claim diets B/C lower viable juvenile counts significantly, that any publicly marketed US feed was the anonymous A/B/C formula, or that supplement powder alone changes reproductive output.
Evidence quality: Peer-reviewed controlled broodstock study; already included in Aquapedia, reanalyzed here for interpretation of maternal vs juvenile endpoints.
Natural biofilm supporting a full Neocaridina life cycle (2020)PREVIOUS STUDY / CROSS-CHECK · Neocaridina davidi
Life stage: Adult reproduction and initial juvenile grow-out
What researchers tested: Culture substrates: plastic net, plastic sheet, agrovelo; naturally developed microalgal/protozoan biofilms; zero-exchange culture-specific protocol.
Results: Survival, biomass and reserves of juvenile I were higher with plastic net and agrovelo than alternative supports; adult reproductive development was observed.
Does not establish: Does not test Bacter AE or microbial additives and does NOT license universally skipping water changes or external feed in home aquariums.
Evidence quality: Peer-reviewed controlled habitat/biofilm system; already included in batch 4 and reindexed solely for endpoint comparison.
SOURCES AND LIMITATIONS
18 food and feeding systems
Hikari Shrimp CuisineNeocaridina;Caridina · complete shrimp pellet
Evidence classification: us manufacturer plus keeper report
Interpretive boundary: US manufacturer: protein minimum 40%; fat minimum 6%; pellet ~1.2–1.4 mm; contains copper at declared min 29mg/kg—essential trace mineral, not proof of toxicity at labeled exposure. Manufacturer benefit claims separated.
Reported observation 1 ↗ · Reported observation 2 ↗ · Maker or study 1 ↗
Hikari Crab CuisineNeocaridina;Caridina;other scavenging crustaceans · crustacean pellet
Evidence classification: us manufacturer plus keeper report
Interpretive boundary: Manufacturer protein minimum 31%, fat minimum 4%, calcium min 0.7%; shell and molting benefits require broader mineral and water assessment.
Reported observation 1 ↗ · Reported observation 2 ↗ · Maker or study 1 ↗
Dennerle Shrimp King CompleteNeocaridina;Caridina · complete shrimp stick
Evidence classification: keeper report us location unconfirmed
Interpretive boundary: Imported brand sold to US hobbyists; 5-in-1 manufacturer ingredient list is formulation-specific, not independent performance evidence.
Reported observation 1 ↗ · Reported observation 2 ↗ · Maker or study 1 ↗
GlasGarten Bacter AENeocaridina;Caridina shrimplets · biofilm support powder
Evidence classification: keeper report us location unconfirmed
Interpretive boundary: Hobbyists use for bacterial film; no verified species-specific survival trial for the named product. Excess organic powder can consume oxygen/foul water.
GlasGarten Shrimp Baby / shrimp baby powderNeocaridina;Caridina shrimplets · fine scattered feed
Evidence classification: keeper report us location unconfirmed
Interpretive boundary: Powder distributes more broadly than pellets; avoid assuming it replaces mature biofilm or colony maintenance.
Repashy gel foods (Soilent Green / Community Plus)Neocaridina;Caridina;community · gel feed
Evidence classification: keeper report us location unconfirmed
Interpretive boundary: Specific formula matters; mixed community feeding not proof of dwarf shrimp complete nutrient profile.
Shrimp Envy Complete EnvyNeocaridina;Caridina · small batch pellet
Evidence classification: first party US breeder supplier
Interpretive boundary: Supplier advises a tiny pellet per 30–40 shrimp every other day and removal after 3–4 h; guidance is seller practice, not controlled dose study.
Shrimp Envy Baby EnvyNeocaridina;Caridina shrimplets · powder feed
Evidence classification: first party US breeder supplier
Interpretive boundary: Used on non-pellet days when babies are present per manufacturer; no nutritional guarantee independently validated.
Shrimp Envy Growth Envy / Shell EnvyNeocaridina;Caridina · protein and mineral supplement
Evidence classification: first party US breeder supplier
Interpretive boundary: Two distinct products grouped as a retailer's example of alternation; mineral and protein claims not outcome-proven.
Naturally established periphyton / algae / biofilmNeocaridina;Caridina;shrimplets · natural grazing
Evidence classification: breeder guidance and peer review
Interpretive boundary: 2022 N. davidi study found differences between plant-substrate treatments, but did not isolate causal biofilm nutrition from shelter or pathogens.
Reported observation 1 ↗ · Maker or study 1 ↗ · Maker or study 2 ↗
Catappa leaves / untreated leaf litterNeocaridina;Caridina;shrimplets · biofilm substrate
Evidence classification: us breeder guidance
Interpretive boundary: Leaves are surface and decomposition substrate rather than complete purified food; pesticide/tannin/pH and excessive organics may matter.
Blanched zucchini / spinach / carrotNeocaridina;Caridina · occasional vegetable supplement
Evidence classification: us breeder guidance
Interpretive boundary: Rinse pesticide-free vegetables; small portions; remove leftovers to prevent microbial bloom; not nutritionally complete.
Reported observation 1 ↗ · Reported observation 2 ↗ · Maker or study 1 ↗
Snowflake / soybean-hull grazing foodNeocaridina;Caridina · fiber grazing substrate
Evidence classification: us breeder guidance
Interpretive boundary: Longer persistence does not mean unlimited safe dosing; fungal/mycelial bloom and oxygen consumption require monitoring.
Reported observation 1 ↗ · Maker or study 1 ↗ · Maker or study 2 ↗
Hikari algae wafers / other algae wafersNeocaridina;Caridina · supplementary sinking wafer
Evidence classification: keeper report us location unconfirmed
Interpretive boundary: Algae wafers may be fish-targeted and not wholly algae; read exact product formulation.
Occasional frozen bloodworms / baby brine shrimpNeocaridina;Caridina · animal protein supplement
Evidence classification: keeper report us location unconfirmed
Interpretive boundary: Sanitation, portion control and separate fish predation risk. No categorical 'protein causes molts' conclusion from anecdotes.
SL-Aqua food and bacterial substrate powdersNeocaridina;Caridina · imported specialty supplement
Evidence classification: us breeder primary guidance
Interpretive boundary: Seller reports using SL-Aqua Milione and Magic Powder during tank cycling. Substrate additive is not an animal's verified nutritionally complete pellet.
Mineral Junkie / Shrimp King MineralNeocaridina;Caridina · mineral supplement
Evidence classification: keeper report us location unconfirmed
Interpretive boundary: Mineral products do not replace testing GH/KH, calcium/magnesium, stable water parameters, or calibrated remineralization.
Reported observation 1 ↗ · Reported observation 2 ↗ · Maker or study 1 ↗
Water-column suspended powder for fan shrimpAtyopsis;Atya · specialist filter feeder
Evidence classification: us breeder guidance
Interpretive boundary: Unlike grazing Neocaridina/Caridina, fan shrimp capture particles in flow; slow sinking pellet alone is inappropriate.
SOURCES AND LIMITATIONS
What research actually found
Sganga and López Greco (2020): three maternal commercial diets changed egg carotenoids and later juvenile outcomes; differences in relative actual fecundity were not statistically significant. Tomas et al. (2020): 90-day Neocaridina trial of five diets found survival above 80% in every diet and stronger color with greater carotenoid intake, not genetically new color. Vazquez et al. (2022): Vesicularia moss rearing yielded 90% survival against around 60% in other substrate conditions; the cause could include habitat/microbiome, not necessarily biofilm calories alone.
Maternal-diet study ↗ · Diet/color study ↗ · Substrate study ↗
SOURCES AND LIMITATIONS
Species differences and water-quality safeguards
Neocaridina: established biofilm and modest sinking complete feed; adjust supplemental amounts to colony and grazing. Bee / Taiwan-bee Caridina: similar grazing but distinct softwater chemistry and remineralization; a mineral snack cannot replace appropriate GH and stability. Amano: grazing ecology but different larval biology. Sulawesi Caridina: specialized habitats; do not generalize softwater bee shrimp feeds and water chemistry. Atyopsis / Atya: suspension and current are essential to deliver fine feed to fan appendages.
Monitor uneaten pellets and oxygen, avoid sudden heavy organic powders or rotting vegetables. Copper on a complete-feed dry label is an essential trace element and does not represent the dissolved copper concentration in aquarium water.
SOURCES AND LIMITATIONS
Documented label specifics
Hikari Shrimp Cuisine USA: protein ≥40%, fat ≥6%, dry-feed copper ≥29 mg/kg; about 1.2–1.4 mm. Hikari Crab Cuisine USA: protein ≥31%, fat ≥4%, calcium ≥0.7%, about 1.7–2.0 mm. These manufacturer analytical labels are not tests of growth, molting or breeding efficacy against competing brands.
SOURCES AND LIMITATIONS
Source eligibility
Independent global ornamental shrimp food market shares, audited US breeder feeding rates, lab-verified Bacter AE versus Shrimp King survival, and a universally optimal protein percentage are not established. Only official brand links and limited keeper accounts were accessed. Never copy social-media photos without permission.