No. I have yet to see even closely related species courting or spawning so I am not overly concerned that A. gephyra/gibbiceps/pertensis will interbreed. As for separating species it isn't so difficult if you have both species in the tank. I once found A. gephyra and A. paucisquamis mixed in a sales- tank and you could definitely tell them apart. Due to a limited amount of space I often raise Apisto-fry from different species together and have not had any problems with that at all. It is a lot easier to tell species apart if you have bred them and watched the fry grow up to adults. /Fredrik salS wrote: > > Aren't you afraid of hybridization? I know that I (except for a few > species) have a tough time telling the females apart. Even though I agree > with you that it's very satisfying watching the different species interact > with each other, I constantly fight the urge to do so because I don't want > any interbreeding. > Good luck > sal > ------------------------------------------------------------------------- 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://www.digital.com for "Apistogramma Mailing List Archives"!