Im setting up a 20" cube tank. Its going to be a temp tank for about 6 months untill I'm done with the set up of my larger tank I have in the garage. My question is do I have to provide additional filtration other than the forty lbs of live rock and four power heads I already have. The tank is not plumbed and I do have several canister filters as well as hob filters at my disposal. Tank is going to be used to start growing out corals for the 220 im trying yo get set up