Ok, I was just wondering if the fluorite substrate made for planted tanks, will raise anything like your Nitrite and Ammonia levels in the tank. We just put in some seachem fluorite yesterday. Before we put it, in the nitrites were very low, like 0.2, and the ammonia was 0. After putting it in it raised the nitrites in the tanks slightly, and raised ammonia by quite a bit. I did a 20% water change today, to help lower the levels.