http://forum.aqua-fish.net/ A forum devoted to aquarium fish, plants, techniques and fish keeping as a whole. en http://forum.aqua-fish.net/?topic=ph-problems#1 Hi there I'm having trouble with the pH levels in my 200L tank... Basically I cant keep the pH down because the tap water round here is coming out at 8pH!! So when I do water changes the pH spikes up which is not good I've been using pH down, but am relutant to keep using it as I dont want to stress the fish out with it. Today I've been out and brought some water to do a water change...which for me isn't ideal as well Basically i was wondering if anyone out there knows a trick to help bring the pH down naturally? Cheers bjbreen69 2009-10-31