Hello all and thanks for any replies. I have a 55 gallon FOWLR. I have 3 clown, 3 firefish, 1 chromis, 1 foxface, 1 mimic saddler. 2 choc. star and some hermits and nasarius snails. Tank has been up and running for about 6 months after a month and a half cycle period. Levels have been fine until...