Hi Ken and all, Ken Laidlaw wrote: > > > One of the Apisto keepers in my area, Ken Nordby, observed a sex reversal in > > nijsseni. I believe the male died and one of the the two remaining females > > changed into a male. I got some of the subsequent offspring. > > Hi, > > Is it possible that the 'female' was in fact a sneak male. > I have read and seen to some extent that males will stay > looking like females in the presence in a dominant male. > > One example being my friend's pair of A. sp tucurui, the > smaller fish looked like a female for a few months but when > the large male died the smaller fish suddenly increased in > size and it's fins lenghtened. > > I'd agree that with the large sexual dimorphism/chromatism > in A.nijsseni it is less likely for a male to look like a > female. > > Ken. > > this was my first idea, too. But didn't anybody say he/she spawned? When it was a sneak male he couldn't spawn?! Or could he/she? best regards Wilfred ************************************** Wilfred Teiser - Germany PHOENIX CONSULTING software - aquaristic - filters - food phoenix1@t-online.de http://home.t-online.de/home/phoenix1 ***************************************