You can use baffles to keep a steady level for your skimmer to operate at its best efficency and also to keep its bubbles out of the display. I would consider using reversed baffles like I do (see my build thread). It will keep the floaty scum from the DT in the skimmer chamber rather than skimming it off and sending it back to the tank, and because it takes water from the bottom of the chamber it filters out micro bubbles better. You can also get away with only having 2 baffles thus saving space.
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