ok ya`ll,,keep in mind, I`m VERY new at this. Heres my 55gal, setup just 2 weeks old. 2 LR`s, some small pieces with lots of life. 6lbs. of LS,spread over 2" crushed coral,2whisper2 filters,1small powerhead.Doin ok so far-all water readings good.Wish me luck!!:confused: