chuck Amburn wrote: > 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. The average pH in my tanks is in the 5's with several in the 4's. I start with using almost all r/o water and then conducting water changed with only r/o. If the pH starts to drop too low, then I'll add a liter or two of tap water (treated with Amquel). This would be for a 20 gallon tank. My r/o comes out at about 10 to 20 microsemons (I'd guess one degree or less) and the pH is already in the 5's. Last year my r/o unit began to produce water like yours--neutral or alkaline. I had no spawns for months. Then I bought a new r/o unit and my spawns took off again. I would recommend getting a new r/o membrane. Sure it may cost a bit, but if you want to succeed, you've got to get the right equipment. - --Randy