I agree that would be the problem, especially because this female/male is getting on in age and probably doesn't have much interest in spawning. At 09:47 AM 3/16/98 +0000, you wrote: >Hi Steve > >It's not unheard of. Koslowski wrote (don't remember if it was in his >book or in an article, I'll check it out) about reported sex changes >in Ap. nijsseni. I think the difficult part will be to show that the >once fertile female is now a fertile male. > >I have a female (that has spawned several times in the past) that has >been alone for quite a while. She is developing male-traits so all I >need to do is find him/her? a female and see what happens. > > >//Fredrik > >-- >Fredrik.Ljungberg@saab.se >Saab Ab >Flutter and Loads Department >voice +46 13 18 54 60, fax +46 13 18 33 63 > > >------------------------------------------------------------------------- >