Of all the tools you can buy to scrub the walls of your aquarium, the JW Pet Scrubbers come with better ideas. Each an easy and effective way to remove unattractive algae and slime from glass aquarium walls. The rubber, non-slip grip handle on this scrubber is a strong, no-flex, curved design for easier cleaning. The scrubbing pad removes algae and slime with just a swipe along the walls.