Hi All, Fairly new to the the hobby but I have 6 mo old 180 gal tank with 220 lbs of live sand and 200lbs of live rock 3 clowns 1 royal gamma, 1 yellow head jawfish 1 naso tang 1 yellow tang and 1 blue hippo tang. snails, hermits, arrow crabs, yada yada yada. All perametters on water are near...