What about water from a home water softener system. Would that give you good "soft" and/or low tds water to use for your fish? Ryan Join the AKA at http://aka.org/modules/tinycontent0/index.php?id=9 Archives are at http://fins.actwin.com/killietalk/ Modify your subscription at http://www.actwin.com/mailman/listinfo.cgi/killietalk