Hi Steve My only experience with A. gibbiceps has been with wild caught fish. I had a group of 8 I had originally bought which were young adults. The dominant male killed off all the other males and after 6 months all that was left were him and 2 females. This was in a 20 long, so space was probably an issue. They spawned about 6 times before I got a fertile batch which I pulled & hatched separately. The male then spawned with the second female, which they took care of and raised. He then spawned with the first female again which they also took care of and raised with the other fry still in the tank with them. The fry I raised alone, seemed to grow slightly slower than the norm for me but the fry, (both batches) left with the parents grew faster than most Apisto's I've worked with and were trying to spawn in 4-5 months. I had at that point about 60 young adults in that same 20 long and was doing 50% water changes twice a week. The water parameters when I got fertile eggs were, pH 4.0, hardness 60-70 PPM TDS. Tom Wojtech ------------------------------------------------------------------------- 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"!