I know nothing about maintaining sumps, so I'll leave that for somebody else.Well the tank is a drilled 180. I have the drains going into a tower filter I made. Basically it is a plastic tower with drawers that I drilled holes in. I have filter floss in first tray, ceramic bio rings in second stage. It drips tray to tray into a sump that is returned back to the tank with a return pump. I put the return into a spray bar across the back of the tank. Also have 2 powerheads in the corners blowing towards the middle. I have been lacking on my waterchanges. I Usally do a 50% change once a month.
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