Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!tut.cis.ohio-state.edu!quanta.eng.ohio-state.edu!rcgl1.eng.ohio-state.edu!BRIDGE From: BRIDGE@rcgl1.eng.ohio-state.edu (JOHN BRIDGE) Newsgroups: alt.aquaria Subject: Re: PH, Hardness Message-ID: <3931@quanta.eng.ohio-state.edu> Date: 16 Jan 90 15:45:52 GMT References: <2637@pbhye.PacBell.COM> Sender: news@quanta.eng.ohio-state.edu Organization: Ohio State University Lines: 7 As long as the fish are doing great and the plants growing, don't worry about the pH. If is starts dropping below 6 and you worry about it, put 1/4 to 1/2 teaspoon baking soda (disolved in a cup of water first) slowly into the the tank. Don't raise the pH more than .2 per day, however. Sounds like things are going great, good luck. John