Sure, Daniel. Seven days is enough, especially if you are adding all those misquito larvae and fairy shrimp along with the water. But you better get a filter going in there or you will lose it all once you have all that extra bioload from the fry. I recommend a simple sponge filter for your particular setup. Bob Dixon ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@majordomo.pobox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@majordomo.pobox.com. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!