Try to raise the fish in 75-76 F water temps... I've found that this seems to work best for most of my apistos to give me decent sex ratios. also depends on the pH of your water too!! I've found very acid water with a high temp gave me mostly males... One summer, one of my grow out tanks yeilded 44 Males and 3 females , Temps due to summer conditions were in the upper 80s and the tank had very low pH, somewhere under 6 , i cant remember to be exact. Yet another tank in cooler weather yeilded 96 females and 4 males.... So im not sure what really caused my extreme ratio's.... I never did check the pH on that tank that gave me mostly females..... Funny part was, i had NO problems selling all those females..... i thought for sure i was going to have to use them to feed my Oscar pair at the time... John ----------------------------------------------------------------------- -- 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. apisto-digest@listbox.com also available. Web archives at http://lists.thekrib.com/apisto Trading at http://blox.dropship.org/mailman/listinfo/apisto_trader