Hello Gabriella My guess would be that they should be able to coexist in the same tank. The Borellis' should be able to defend their fry well enough to get them to a point where the fry are too big for the Endlers to eat. As far as the Endlers fry, they would more then likely stay up top in the plants where the Borellis wouldn't be able to find them until they got big enough such that the Borellis wouldn't look at them as lunch. Next question. Are you keeping your Borellis in harder water that the Endlers enjoy or have you gotten your Endlers to survive in softer water? I've never had good luck trying to get livebearers to thrive in softer water like I have nor have I ever tried to keep Apistos in harder water. Just curious. I've always like true Endlers. John ------------------------------------------------------------------------- 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"!