I have only added the calcium maybe twice in the last two months. I do test for it, so i only add it when it is needed. I have begun doing more frequent water changes, and i quit adding anything, including calcium. (The level has not gotten low enough to add). I am still having a problem with my PH though. When it gets low, i add a PH buffer. Is this an o.k
. practice, or what should i do to stabalize it instead of supplementation? I use Seachem brand buffer that sets PH to 8.3. Could this be adding to my problem? It says its safe for everything in the tank in any doseage amount, but i am still skeptical.