I have a reef tank and want to make sure that this horrible white slime/fuzz all dies. It's all over my rock which I am going to throw out but it's also only PVC tubes and glass. Do you think it would be best to drain the tank and let it sit for a few days or add bleach to the tank. Do I have to worry about bleach messing with the silicone? Please help me so I don't have to look at the horrible stuff anymore.