i have had my 45 gallon for about 2 weeks now. i haven't had a problem with it until just yesterday when i added a live rock. after i did this the tank got really cloudy and my filters aren't making it any better. is there anything else i could do? right now i have biowheel filter an undergravel filter and a canister filter. all my tests are normal as can be. my salinity was a little low the other day but i fixed it. i feel bad for my sweeties who are swimming blindy now.