Jason, We had success with water ranging from ph 5.0 to 6.5. Perhaps the only difference beeing a slight decreese in viable eggs at the higher values. Treat them no different than an Aggie or gephyra and you shouldn't have too much trouble. Pretty fish worth the effort. Julio ------------------------------------------------------------------------- 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"!