I have only had this cloudiness for about a week (since my last water change). I have been doing weekly water changes of 30-40% and I change the filter carbon monthly. The last 2 weeks I have recently started adding the recommended amount of Flourish plant supplement (if makes a difference). I'm debating what I should do to clear this up. One thought is to get a circulation pump to better move the water around (Thinking about the Oceanic BioCube Circulation Aquarium Pump moving 250gph). Another, is to increase my filter from the Aqueon QuietFlow 10 to the 20. I've even thought of eventually doing both the circulation pump and more powerful filter. Suggestions?