Sorry if I have asked this question before but I need to know if I should run my Aqua Clear 70 with my current setup, pros cons. I currently have a 55 gallon SW tank freshly cycled, No skimmer, 1 1/2 SB with a few rocks for decoration 4 fish from the Brackish set up I had going. I have a 20 gallon sump/fuge up and running the only thing in it is 1 1/2 sand bed as of now. If I do have to run it can I stick it in my sump and still have it function properly as a filtration system. It contains a Foam Insert, a Carbon Insert and BioMax Insert.