chop81 said:Hi! Yes our water is like liquid rock, but Ive got RO filter but used TMC remineral acording to instruction and my paramets are a bit higher then should. Now Im thinking about fulvic grain from benibachi just not sure how big is this bag. Do I need to do water change before use fulvic grain
Don't buy anything yet, you might not need to. If your using RO water and your parameters are that high then something in the tank is buffering the water. I suspect the TMC stuff you use but i can't be sure as i have never used it. Have you got any sort of rock in your tank?