I have a piece of wood (grape wood maybe) that developed a snot like substance on it. What is it and how do I get rid of it? I boiled the wood that I got from an aquarium store and soaked it before I put it in my tank. It’s been in there about a week. No other algae in the tank and I have lot of plants. The white stuff around the plant is flourish glue BTW. Hopefully it doesn’t stay like that! I guess I overdid it with the glue.