The water parameters for A. cacatuoides appear ok, I think your male may just be going on a perverse territory/failed parenting reaction (I've had this behaviour with other apistos when a spawn has failed.), but double check that there is not a spawn somewhere in the tank if the remaining female is still in yellow coloration. If you have the luxury of another tank, I'd put him in there until he cools off, and the female is ready to spawn again. If not, try to rearrange the layout of the tank to build "sort of" rooms within it, using the plants and coconut-shells, This changing of the territory may confuse the male enough until he calms down. Maybe add a few more refuges for the female out of additional coconut-shells, terracotta flowerpots (not previously used for plants), bits of PVC pipe, etc.. Scot -----Original Message----- From: Frode Johansen [mailto:frode.johansen@bio.uio.no] Sent: 22 February 2000 11:20 To: apisto@majordomo.pobox.com Subject: Hi. I have a 10 gallon tank with some Apistogramma cacatuoides. I had one male and two female. For about three weeks ago my dominant female wanted to spawn, and turned yellow. But the male diden`t want to join her, so there were no fry. Now, my male is chasing the females, and yesterday the subdominant female was dead. And the dominant female (the one which wanted to spawn) is chased around in the tank by the male, and 1/4 of her caudal fin is bit off. My tank has two half cocconut-shells as caves and it is pretty heavy planted. The pH is about 7 and the hardness is 1-2 german degrees. The temperature is 27-28 degrees celcius. I change about 1/8 of the water every four day, so the water should be clean enough. I feed them with live white mosquito-larvae and frosen bloodworms. As dither-fish I have three Nanostomus trifasiatus and two Otocinclus affinis. My question is: What do I do wrong? Should I lower my pH? And, should I now buy another female? Frode Johansen (from Norway) ------------------------------------------------------------------------- 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"! ____________________________________________________________________________ ____ This message has been checked for all known viruses by the Star Screening System http: //academy.star.co.uk/public/virustats.htm ________________________________________________________________________________ This message has been checked for all known viruses by the Star Screening System http: //academy.star.co.uk/public/virustats.htm ------------------------------------------------------------------------- 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"!