I have been thinking about this too since I read santa monicas post on some other forum way back.
I had a fuge on my 180... ehh.. nasty swamp looking thing.
And now I tried another idea out there somewhere, fuge with duckweed. Big mistake. lol more Nasty fuge looking thing.
I want to build a rotating algae wheel. I would like to incorporate it into my DIY wet dry... Just need to find some room....