I just noticed a mysterious green slime on one of my rocks and have no idea what it is. I thought it could be a type of algae, but I would have thought that my clean up crew would have taken care of it. I've attached a picture of the slime in question. It's the dark greenish object in the middle of the picture.
Any help ID'ing this thing or what's the best way to get rid would be appreciated!
Any help ID'ing this thing or what's the best way to get rid would be appreciated!