Last night I did a 50% water change/gravel siphon using tap water. Added water conditioner (Aqua Safe), Aquarium Salt (2tblspns), Stress Zyme (1tspn), and Stress Coat (2tspns). My fish have fin rot and I'm nursing them back to health. I checked my water chemistry and everything is perfect, the temperature is a warm 82 degrees, but the tank is cloudy. It was cloudy before I did the water change but I thought the new water and drops would help. :/ What could be causing this cloudyness? It's a 10 gallon tank with a filter divided for 4 Betta's.