Tank is 300gallon sump 75gallons, have lots of fish feed 2x a day 6 cubes and 6 pinches of flake total a day. Vertical water fall type. screen size 12x8. flow for scrubber return 1 gallon in 16 seconds if math is right 225gph. feeding off return from sump. using 4 30w http://www.amazon.com/gp/product/B0...ue&ref_=ox_sc_act_title_1&smid=A1AKFXA5SBNHIA leds on 16 hours a day. my sump is designed for filter socks, but removed last week. next chamber in sump is skimmer, but turn that off last week too. can I run filter socks and my skimmer with a scrubber setup correctly? I really don't know what is the issue, if anyone could me.