You could use an airline tube to do a small water change(about 10% per day). This is an easy way to avoid sucking up fry. If the fry are eating bbs, then it's your call when to remove parents, sooner the better IMO. For a night light, you could use one of those 7 watt lamps that go on those plastic "critter tanks", that shouldn't cause an algae problem. dave ------------------------------------------------------------------------- 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. Search http://altavista.digital.com for "Apistogramma Mailing List Archives"!