will need many filter feeders and carpets if you try this, or the arthopods and what not will take over.
that is not a bad thing. you can always introduce a manderin if you wanted at a later date. for now though, you want a lot of natural life in the tank. this is great food for fish and will clean up detritus. one thing, if you don't go for a sump, the skimer will have to hang on the back of the tank or on a shelf ABOVE the water level in the tank which could be a problem.
ste