You can add to the microorganisms by feeding some snails with lettuce leaves for a week before right in the tank. I have used that trick for killifish fry while away for up to two weeks. It is also better to run on the cool side of their range to slow the metabolism of the fish. Lee Harper Media, PA USA ----------------------------------------------------------------------- -- 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