Hey guys!! So I got the 110 up and running with the volitans and the maroon so far ( they love each other; the clowns always trying to snuggle him) and im currently building my 55gal sump unit instead of the 20. I qantas to ask; my constant water level all the way across through the (now about 28+ inch ) will be about 8.5 inches high. Is that okay/enough??? I know I should have asked before siliconing... I will have 3-4 inches at bottom of matrix ,denitrate LR and LR rubble, then 4-6 inches of bioballs in and out of water level, then a 1-2 inch gap where the water drips from.my prefilters. Is the 8.5 " of water level legit for a 55gal unit???