Identity, quick facts and aliases
Name in historical Aquaphoria Library: Shinkai Daruma. Japanese label: 深海ダルマ (trade-channel label). Commercial labels and breeder-specific forms must remain distinct from standardized morph characters until supported by original documentation. Freshwater medaka; no scientifically demonstrated strain-specific water optimum was found.
Appearance, diagnostic traits and grade
Deep blue internal light with reduced dorsal external light should be examined separately from Daruma body shortening.
No validated numerical grade thresholds or precise inheritance probabilities were located. Compare multiple high-resolution top-view and side-view photos of directly traceable parent fish under repeatable lighting before assigning quality grades.
Origin, creator, history and attribution
Base Shinkai (深海) is associated with Ryusei Nagaoka in established specialist records. Medaka no Yakata describes a 2014 major exhibition; JASMA describes an origin around 2010. Distinguish creation from first public exhibition.
Lineage, genetics and inheritance
Base Shinkai derived from Marine Blue-like medaka by selection against dorsal exterior light, emphasizing blue internal/peritoneal light. A Shinkai Daruma form is a short-body expression; the exact short-body line-cross and creator are not proven.
A reported cross is not a DNA genotype; neither dominant/recessive behavior nor a guaranteed breeding ratio should be inferred without controlled crosses. Use separate pedigree entries for subtype/selection changes.
Breeding, husbandry, diet, compatibility and health
Maintain parent identifiers, breeding dates, fry counts, juvenile morphology and adult trait outcomes. Feed developmentally suitable medaka diets, quarantine new arrivals, avoid abrupt parameter changes and respect density/oxygen demands. Daruma-specific body forms warrant separate swimming/feeding observations; no unverified treatment dosage is prescribed.
Photographs and reuse rights
Refer to breeder/publisher linked images for comparison but do not copy them into Aquapedia without the rights holder's permission. Record photographer, date, location and reuse rights before publishing photographs.
Sources and confidence
Medaka no Yakata Shinkai reference: ; JASMA profile: ; Medaka no Yakata Daruma trait overview
Unverified in this pass: genetic loci, fixed inheritance proportions, official grade categories, current market supply and any lineage elements not directly covered by sources.
Open verification tasks
Resolve timeline discrepancy; obtain original Daruma breeder crosses and document ordinary versus short-body offspring.
Publication status: Evidence-labeled research record suitable for Aquapedia, not a certified pedigree or genetic prediction.
Public research references
Listed research leads are not automatically supporting evidence for every individual claim.
No eligible public supporting URLs are attached to this summary yet.