Identity and naming
Preferred search name: Neptune Daruma. Japanese name/label: ネプチューンダルマ (trade-channel label). Confirm breeder-designated writing, pronunciation, and distinct-line status before public catalog promotion.
Quick facts and husbandry
Freshwater ornamental medaka. No strain-specific controlled water-parameter optimum was found in the reviewed references. General O. latipes husbandry applies; avoid claiming a bespoke temperature/pH target without studies or primary keeper records. Stable conditioned water, temperature consistency, appropriate oxygenation, cover, biosecurity and quarantine are prudent husbandry practices.
Appearance and diagnostic phenotype
Compact shortened body and rounder back relative to regular-body Neptune; form and lame expression must be evaluated separately.
Grade criteria: Inspect multiple top- and side-view images of identified breeder stock under consistent light; evaluate the claimed defining expression separately from individual quality. No validated numeric grade threshold was located.
Genetics and reported lineage
Documented/reported cross: Neptune line with Daruma or semi-Daruma short-body phenotype, according to historical Aquaphoria channel; exact breeding path unverified.
Evidence interpretation: Daruma is a body-type trait that can segregate, not proof of a stable independent strain.
Do not infer dominant/recessive loci, trait percentages, guaranteed fry phenotypes or genetic fixation from this pedigree alone. Keep records of each actual parental pair and offspring generation.
Creator, lineage and history
Not verified for this subtype; do not equate Neptune base breeder with creator of a specific Daruma form.
Precise release year and original breeder distribution should remain unverified unless supported in the evidence below.
Breeding and selection
Record parent provenance; photograph paired breeders, eggs/fry and juveniles by generation; tally appearance and body types at maturity; retain ordinary segregants rather than assuming every offspring carries the advertised expression. Quantitative inheritance data remain unknown.
Health, nutrition and compatibility
Use standard medaka juvenile/adult feeding and observe body type and fin condition. Do not assume variant-specific medical needs or environmental tolerance without evidence. Species is usually maintained with other appropriately sized peaceful fish; individual competition, fin form and quarantine must be assessed case by case.
Open verification tasks
Verify parent stock, body-type distribution, temperature-sensitive care requirements and original breeder.
Aquapedia publication decision: retain as a research dossier with explicit evidence state; do not promote uncertain trade subtypes to fully verified independent strains.
Public research references
Listed research leads are not automatically supporting evidence for every individual claim.