I have a question, I have a camber in my sump not being used and I'm thinking about pumping it full of water with a spare mag 5 and using it for a UAS. My question is if I have a 40 breeder using a Mag 7 for the main flow would a Mag 5 be enough flow for the UAS to work properly? I'm using a 29 gallon tank for my sump so I have about a total of about 55-60 gallons if I had to guess and I feed 1-2 cubes a day and coral food alot.
I started using a waterfall scrubber but was unhappy with the mess it made as far as salt creep....which is why i have an extra camber in my sump.