Sorry about the 1:256 chance of albinism. I can't seem to get that number again. I think I multiplied too many times when figuring out the calculations. No matter how often I try the calc'n over, using a Mendelian Formula, I keep getting 1:16 (the square root of 256). That is if both parents have one allele for albinism - that's the only way it'll show up. The sources for the calc'ns are from my high school and early university ecology classes. I also remember seeing these calc'ns in a book about keeping and breeding guppys. If you want more info on Mendelian Genetics, let me know, I'll help out where I can. ===== J. Miller Edmonton, AB, Can. __________________________________________________ Do You Yahoo!? Yahoo! Auctions - Buy the things you want at great prices! http://auctions.yahoo.com/ ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!