HOWDY ,, question i have a 220 gal.freshwater tank with a sump filter . it's been set up for 2 months now but it seem the water will not clear up .. i do 2/3 water changes once a week but it goes back to being a bit cloudy if i stand at one end and try to see through it's very hard to do.. any suggestions would be helpful,, 

THANX
THANX