Okay, Here's my 55gallon setup>> aprox. 35-40lbs of live rock (cured Figi & 3-4 small pieces of cured tonga), 5" of mixed alternating substrate (sand and coral), 4 maxi-jet 1200's running on a redsea wavemaster pro, 2 emperor 400's for filtration, seaclone 100 protein skim., 260w coralife light...