There are newer and more efficient alternatives to filtration, of course. I don't like a lot of tank equipment. Sumps tend to be noisy and can flood, not to mention the added maintenance and cost associated with setting one up. I've talked to many experts in the reefing business and the general consensus is that one could spend a small fortune to run a reefing tank or one could spend next to nothing and be just as successful. So this is a bit of an experiment. I'll have a bit of maintenance with gravel vacuuming and water changes. But I don't think it will be any more maintence than anyone else. I'll keep you all posted. I just finished painting the tank stand this morning and the Rock and substrate I ordered should be in soon. Just Rock, sand, and water to be added the comes the fun part of waiting for the cycle to end.