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Aquapedia / evidence archive
Aquapedia separates what is documented from what is repeated. Breeder, origin, lineage, phenotype, locality, and husbandry statements keep the confidence level supported by their sources.
Open the full archiveOryzias latipes
Exact TOA / Fukuoka auction record with exact listing photos. The primary listing credits Tsukushi Medaka as creator; Aquapedia preserves that as listing attribution rather than upgrading it into independently proven lineage.
Exact TOA / Fukuoka listing matched to the explicit strain name with exact listing photography. No unrelated look-alike is used as a substitute.
Exact Fukuoka / SMYKA auction record. Standard-fin males and real-longfin females are listing-specific observations, not a universal statement about every fish sold under the name.
Mimu Medaka’s official account supports the name and new-work reference, but an indexed exact photo clearly naming and showing Yoru has not been verified. A similar fish will not be substituted.
Neocaridina davidi
Strong breeder-site evidence supports a stable Japanese line followed from the early 2010s and later commercial release. A named original creator remains unverified.
Research record attributes the line to Cai Guanjian / Shrimp Feeling in Taiwan, released in 2021 after selective stabilization of a rare orange-eye Rili expression. Demon is treated as Neocaridina.
“Ocean Blue” is used for both a Neocaridina davidi line and a Caridina cf. cantonensis retail label. Aquapedia keeps them as separate records rather than merging two genera under one hobby name.
Caridina designer lines
High-confidence research attributes development to Skyfish Aquatic in Taiwan, with development dated to 2015 and commercial release to 2016.
Taiwan origin is strongly supported, but the named original breeder and exact parentage remain unresolved across conflicting early accounts.
Current Singapore and Germany lines are documented. KW Shrimps is documented as breeder/source for one Singapore line, but the generic first creator of Orange Boa remains unresolved.
A specialist source explicitly reports that the first breeder and location are unknown. Aquapedia therefore does not invent a Taiwan, Japan, Europe, or named-breeder origin.
A 2026 competition confirms the line in the hobby. Alexander Brunck bred the cited winning set; that proves breeder-of-that-set, not original creation of Nanashi OE.
Current German breeding is documented for both lines, while original creator attribution remains unresolved. Current breeder evidence is not rewritten as historical origin evidence.
Metallic Purple Nanashi, Black Snowflake, Red Snowflake, Blue Snowfall, Red Wasp, and Hornet remain unresolved. Blue Snowfall is not auto-mapped to HWA Galaxy Snowfall without pedigree evidence.
Anchialine Hawaiʻi
Current published work recognizes 15 genetic groups. This is a population-genetic count—not 15 consumer strains or 15 named color morphs.
Strong locality records confirm Hawaiʻi Island, Maui, Kahoʻolawe, Molokaʻi, and Oʻahu. Popoiʻa / Flat Island is an Oʻahu sublocality, not a separate high-island lineage.
Published observations document deep red through pale pink and near-translucent animals. Common-garden differences support a lineage/genetic component, while direct heritability of specific color states has not been established.
Maunalua is a recognized genetic group within the South Oʻahu lineage and is distinct from ʻEwa. Locality/genetic groups remain separate from hobby color-line naming.
A captive spawning population was maintained at 23–25 °C, 18–20 ppt salinity, and 12h light : 12h dark; about 23% of females spawned in the cited work. These are documented study conditions, not declared universal optima.
Sources support roughly 27–30 days of brooding, with reported fecundity ranges that vary by study, and about 29 days in the water column. Development includes four zoeal stages plus a mysis stage before settlement.
One long-running research system used about 15 psu artificial seawater, 24 °C, a 12:12 light cycle, porous volcanic rock, and microbial/microalgal grazing, with reproduction occurring consistently but sporadically.
No controlled source in the reviewed set establishes one universal pH, GH, KH, or TDS breeding optimum. Adult tolerance extremes are also not breeding recommendations.
Alpha Opae is a distinct species, not an Opae Ula morph. It is an anchialine snapping shrimp in Alpheidae, documented from Hawaiʻi, Maui, and Oʻahu, with a confirmed non-Hawaiian locality on Rapa Nui.
Captive attempts in Hawaiʻi reached the fourth larval instar but did not complete the juvenile cycle. Exact salinity, temperature, larval diet, flow, transition, and other captive-breeding optima remain unresolved.