Anyone know of anything that will eat these buggers? Have accumulated some pretty substantial mats on the rocks over the years. Really tired of getting contact dermatitis every time i brush up against em, should invest in hydrocotizone stock haha. Gloves aren't really probable, they just fill up... 35 inches deep of water, id need a full wet suit, go up to my ear reaching the bottom. Maybe just something i have to live with, not willing to kill the rock.