If I'm thinking of the same fish that you described, then this is a fish that I believe is a selectively bred harlequin rasbora -- selectively bred into what I've seen labeled as a "black harlequin" (or something like that). It is still the harlequin rasbora, "Rasbora heteromorpha." According to the Aqualog, the four(!) species of harlequins have been moved to a new genus, "Trigonostigma." I have seen this fish around in different shops, so I assume that if you keep looking, eventually you'll find some. I prefer the natural ones, instead. --Randy Sarah LeGates wrote: > Hello all, > > this is not a post about apistos, but I've exhausted every other > resource I have at hand to find an answer to my question, and I know > someone on this list can point me to somewhere I haven't thought to > look. About two weeks ago, I acquired a mature pair of fish belonging > to the Rasbora genus, in what I would describe as the heteromorpha > complex (they look like harlequins). The main difference that I can > distinguish between these fish and the harlequin Rasbora is that the > black marking on this pair has "dissolved" into a rather amorphous > blob, extending out across the better part of the body, behind the > gill plate, from where the clearly-defined black mark would be on a > harlequin. These fish have remarkable coloring, which includes the > aforementioned purple-blue blob-like marking on the body, as well as a > "flash" of color on the top of the head, just anterior to the mouth, > that is very shiny and very, very intense. The male's "flash spot" is > red, while the female is more gold. I would love to find more of > these fish; they were someone's trade-ins at the LFS, and they > couldn't ID these fish at the store. No mention is made of them in > Baensch I or II, Axelrod's atlas, or any of the other assorted books I > have at home. I can't find mention of them on the web (although it's > tricky to find them without a species designation). The other species > of "harlequin-like" Rasboras listed in the sources I've consulted do > not match these fish. I seem to remember some mention of a fish whose > black markings "dissolved" with age, and as these fish appear to be > fully mature (~2-3 cm SL) I wonder if this could be an older pair of a > fish belonging to a species whose markings are clear as juveniles. > Does anyone have an inkling as to what they could be or where I might > find more info on them? > > Thanks, > > Sarah LeGates > > ------------------------------------------------------------------------- This is the apistogramma mailing list, email@example.com. For instructions on how to subscribe or unsubscribe or get help, email firstname.lastname@example.org. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!