Hello, I am planning to build a Sump on our regular size 29g & cabinet space is limited. I can only fit 12x12x12 tank w/c is roughly a 7.5g Cube. I don't have a plan drilling the tank, I will just buy an Overflow. Now my Questions: Do I need a baffles for that 7.5? I am only planning to put a Skimmer. Then for the Return pump, is Mag 5 ok? It is about 2-4 feet. Is 7.5 Cube too small for a Sump?Appreciate the input.

