Looking to identify my medaka

[Hans from Holland]

I bought medaka in Belgium as "sparkle mix" Colors were champagne and yellow with iridophores (sparkles)

Is there an official name of this variant. Possibly 2 because of the 2 distinctive colors.

 

[GaryE]

The only way for anything approaching an 'official' name to exist would be if there's some sort of Medaka show judging standard for people who manipulate the look of the fish. You'd have to see if such a thing exists. Even there, the name will probably vary as it's a recently human made form.

It's Oryzias latipes, and isn't really a killifish - it comes from a different evolutionary history. I'd call it a sparkle mix and leave it at that.