I have a 125 gallon tank. filtration is 1 350 gallon per hour powerhead with sponge filter, 1 250 gallon per hour sponge filter, 1 marineland 360 canister, and a POS tetra hob. the bio load is 2 10 inch oscars, 1 5 inch jaguar, 1 7 inch bullhead, 1 12 inch pacu, and 2 6 inch common plecos. it has been running for about 3 months and stays pretty clean....but what do you guys think?????