At five days, the portion of the test panel coated with Easy On is coated with a thin layer of slime that can be felt, though the camera can’t pick it up. There are also the beginnings of plant fouling, evidenced by faint brown spots, which can be seen if you save the image and zoom in on it. The slime and browning came right off with a scrub brush, just as the manufacturer claimed it would. Will it stand up to repeated scrubbings and submersions? Check back and see!