I know I know, the question has probably been asked hundreds of times. The aswer is probably in the forum somewhere it would just take time to find it. Or, I'm thinking there is no answer because everyones set up is different. My dilemna is I just purchased the Oceanic 30 Cube with stand. It is currently being drilled with one 1" intake with two 3/4 inch returns with squid. I want to have built a custom sump using all 18"x16" stand space without cutting that 9" slit in the rear. I already have a ETSS Reef Devil that I would like to use but it takes up so much space that I cant have the skimmer and refugium. I have been told also that I will have problems with micro bubbles with so little space in between the skimmer and return pump. I am thinking I can have a real nice large refugium instead of the skimmer. Any input? I will try and post pics of my proposed lay out.