>>MONITOR AMMONIA AND KEEP UP WITH DAILY 30-40% WATER CHANGES UNTIL THE BIOFILTER IS BACK.<< Place several sponge filters in established, non-infected tanks. You can used these to help re-seed the biofilter in the infected tanks once your battle with the infection is complete. Bill Vannerson McHenry, IL http://ourworld.compuserve.com/homepages/william_vannerson ------------------------------------------------------------------------- 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"!