<DIV>I set up and filled my 55 gal. tank and after the salinity was right added 50 lbs of live sand (this is all I have on the floor of the tank. I am using a fluval 304 canister filter and two skilter250 protein skimmers. I just added 13 lbs of live rock that had a bit of purple algae on board and also added 10 reef crabs, one small horseshoe crab(1.5") and three blue damsels.The tank is now a week