Ah, that's different. It could be a myriad of things, Fish TB is one possibility as it's not species specific and fits the description, but I wouldn't actually put my name to anything specific. Could also be a toxin getting into the tank somehow, and there's been discussions in the past on the list about the problems people have had from feeding previously defrosted frozen foods, so if this has occured it could also be a factor. Dunno. Pete. ------------------------------------------------------------------------- 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"!