The only thing I have in the sump is a diy algae scrubber.
Every 14 days or so I clean it and change 15 gallons of water.
That's it!
I feed Rod's Food, Oyster Feast, Arcti-Pods and mix things up with the Saltwater Variety Pack from San Francisco Bay.
Been doing every other day feedings. Sometimes if the fish look particulaly hungry (when don't they?) I will give them a half feeding on the off days.