So i noticed a finger leather detatch and didnt think anything about it. Then tonight i got to looking and i have 5 huge colonies that are disolving at the base. What is causing it. I have a 220 with a snapper return, 2 korilia 4's powerheads. The leathers sway around during the day. At night i have them turned off so the water is calmer. All my water reads out at 0. My temperature is at 83 during the day when all the lights are on. 3 of them are on 1 side of the tank and the others are on the other side. So if you could please help. Thanks