I don't have a sump in my RSM and I don't think you need one. I use a little bubble Magnus skimmer in the back chamber.. It fits ok but I have to leave the little lid thing open. It's going to get a little warm in the summer, but leaving the little back lid thing open and setting a piece of egg rate over one side with a comp fan running solves the heat problem.
__________________
"Rules are for the obedience of fools and the guidance of wise men."
|