Green Aqua cleaning sponge

Size: 10x6x2 cm The Green Aqua cleaning sponge is a non-scratch algae pad for glass & acrylic. The melamine foam side uses micro abrasive technology to easily remove algae from the sides of your aquarium. It is particularly effective at removing algae from scratches. It is chemically inert and does not use soaps or detergents. It's white color contrasts against dark algae making it easier to see when areas are fully clean.