Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!tut.cis.ohio-state.edu!zaphod.mps.ohio-state.edu!uwm.edu!psuvax1!psuvm!wbk101 From: WBK101@PSUVM.BITNET Newsgroups: alt.aquaria Subject: RE:raising Ph in marine Message-ID: <90016.113052WBK101@PSUVM.BITNET> Date: 16 Jan 90 16:30:52 GMT Organization: Penn State University Lines: 7 My experince has been that crushed coral or dolimite will not raise the Ph of a tank to much more than 7.8. Is this a fluke or does anyone else have this problem Will