Partial plenum?


New member
I'm setting up a 265 gallon reef tank. I've read a lot about DSB and plenum. Would there be any advantage to doing a partial plenum - say two 1' x 2' sections? I'm thinking the advantage would be that I would not have to hang the rocks off the side of the tank - since rocks sitting on the plenum area allegedly cause problems.

Has anyone tried to mix the DSB and plenum method in the same tank?