The tank is a 90 gal, the sump/refuge combined are 40 gal. I have 4-5" sand bed, live rock, 4 tangs, 3 McCosker's wrasse, 1 six line, 2 percula, a tribal blenny, a file fish and cucumber worm, one red leg and one blue leg crab plus some snails, small starfish and mini brittle stars. I'm sure I...