Any advice on how to get a low pH? I am tring to breed my Taeniacara candidi for a while now. I am using an r/o. The hardness comes out at 2-3 and the ph is about 7.0-7.2. Any advice would be nice. I can only get it to about 6.0 using black water extract. _________________________________________________________ DO YOU YAHOO!? Get your free @yahoo.com address at http://mail.yahoo.com