I tried it and didn't have good luck. Cyano issues like no tommorow, and ph flux. I don't know, I'd be interested to try it again, but not with a show tank. I understand the premise of the plenum, and there's a LFS in Portland, OR (Funny that) with all their show tanks running skimmerless with a plenum, but they don't show you where all their plumbing goes, if you catch my drift. I tried it with a 38 gallon nano, and I thought the netting used was too fine maybe, because it seemed like no worms went down into the sand, and serpent stars would dig far down enough to get tangled up. Egg crate, on hind sight, would have been better.