pokagon55
Fish Fanatic
http
/www.thetropicaltank.co.uk/cloudywt.htm This is a good site about cloudy water. It could be a baterial bloom from to much debris on the bottom of the tank, OR From a chemical imbalance in the water which would cause a white or greyish haze. So both you would min. the nutrients in the water by means of a water change and gravel vac. at 40%.
To much gravel in the bottom would cause this too. 1/4 is recommened for unplanted tanks.
http
/www.nunnie.com/cloudy.html This is a good site also. 
this is just a thought.

To much gravel in the bottom would cause this too. 1/4 is recommened for unplanted tanks.
http

this is just a thought.