In the past when I tried this, my sump & equipment became covered in algae from the refugium light. I want the two to be separate (light & water) to keep the protein skimmer from getting algae covered.
I found these containers online, I'm looking at the 12x18x12 (WxHxL) for a refuge and 12x12x18 for the sump (WxHxL). The refugium will be taller so that it can easily overflow into the sump. Theses are a little pricier than I wanted, so does anyone have any idea where I can get a cheaper source for containers with these approximate dimensions? I need the sump to be about 12" tall and the refugium no more than 18" tall. The total available length is 34" and the depth is about 15".
http://www.theonlinecatalog.com/execpc/ ... uct_id=116

Thanks!