How do I lower my phosphate level in my fish tank and get rid of the cloudiness?

I have a 55gal tank with tetra, platies, mollies, glfish and cories and i am having problems with my phosphate level. Its reading very high 10ppm. I tested the water i use for water changes and it has lower levels of phosphate in it (1-2ppm). Water changes dont seem to help the cloudiness to much. I feed my fish once a day and do a 20% water change once a week. I recently added a phos-zorb filter to my filter media but the cloudiness doesnt seem to be going away. Its not milky cloudy but it is cloudy. Any suggestions as to what I could do to get rid of the cloudiness? The tank has been set up since august so I dont feel like it would be a bacteria bloom.