What would cause a white fungus and cloudy water after a water change. Using the same water conditioner i always do. 24 hours after nice clean water it clouds up and white blotches appear on my driftwood. All Mbuna with 1 loach, pleco, and an american eel. The eel is the only thing new since my last 2 cloudy water changes, could it be him??? Last time it cleared up 24 hours after I treated with the Melafix. 72 gal bowfront.