Hi. For the last few days I noticed that my 20g had cloudy water. Much like a bacteria bloom. The thing is the tank is allready cycled. Yesterday I did a 50% WC wich helped a bit but today the water was cloudy again. After runing all the basic tests(Amonnia, Nitrite, Nitrate, Ph) everything looked fine. I broke my head to find out what was going on until I discovered that I left the MagFloat inside the tank. This MagFloat used to live in my Reef Tank and is/was completely covered with coralline algae (lots of calcium). As I took out the MagFloat the coralline fell right off. I performed another 50% WC today. The plants and the Cherry's seem fine. Do you think this can be a problem? Should I continue to do WC's until it looks clear or do I let it ride like this until the next WC?