[Mike Wise] If your viejita eggs disappear after 1 day, I think they are not fertile for some reason. The female will know this after a day & eat them. Either your male is "shooting blanks" or something about your water conditions are wrong. It takes more than soft, acidic, water. It also needs low concentrations of organics & possibly certain metals. Zinc in low concentrations, for example, is known to prevent egg fertilization by milt in trout. If you are not doing this now, try larger & more frequent water changes & see if this helps. Good luck. [John McCrone] Water is RO and other apisto species have hatched in it with no problem. The pair have just spawned this evening and male looks well behaved - cruising around at a distance. So I'll leave him in and see what gives in the morning. Cheers ------------------------------------------------------------ from John McCrone ------------------------------------------------------------------------- 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