Refugium?

[brisco]

I have been toying with the idea of adding a refugium to my system. I would have to be either in my sump or immediately on top, there isn't too much room. I am thinking that it might help with some algae growth in the display and also keep a bigger pod population around. Other than those two goals, I really don't have a great need. Algae isn't out of control or anything. Any thoughts? I run a big skimmer, RowaPhos, and 2 gallons of hydroton in the 25 gal sump.