I've noticed lately that for the first time my turtle's water in his tank is cloudy and I can't get it to go away.
The only thing different is that his tank is to the right of a window, and usually I keep the curtains closed, well I opened them because I have flowers in my room and I wanted them to have sunlight. So that might be why his water is cloudy.
He is in a 20 gallon tank with 15 gallons of water. He has his uvb and uva. The tank temp is 78 basking is 89. His filter is a Tetra Whisper Filter for a 30-60 gallon tank. I did change the filters inside Saturday hoping it would clear it up but it hasn't yet.
Is there anything I can do to clear it up? I add at least a half gallon of water everyday due to evaporation. So I figured maybe that would have stopped it but nope and I've used Aquatize about once a week for the water.

