Mark, Based on Römer's papers you should get a 50/50 ratio by keeping the fry at 26ºC (79ºF) for the first 35-40 days. Mike Wise Mark Dierker wrote: > I have read (and seem to have experienced) that A. Cacatuoides raised in > high pH, high temp water tend to have a high percentage of males. What I > am wondering is if anyone knows at what point in time is the sex of the > fish "fixed". One week, two weeks etc. I would hate to switch them to my > tap water too early. Thanks. > -Mark Dierker > Columbia, Missouri. > > ------------------------------------------------------------------------- > 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 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"!