Fellow MFKer's I need your wisdom. I have a 180g reef ready tank that I am in the process of setting up. I needed to rip out the overflows in order to clean them... yes they were that filthy and the person I bought the tank from siliconed in the bulkheads. I have a FX5 and 2 Emp 400's. I only plan on having 2 Oscars, 4 or 5 geos and maybe 2 catfish. The question is should I lose the Emps and go with a sump (cant' have both) or do I have enough filtration for my stock?