Seachem seaweed sponge (x3)

Anti-scratch algae sponges for glass and acrylic. Melamine foam. Safe for glass and acrylic. Soap- and detergent-free. Algae Pad Seachem are anti-scratch sponges for glass and acrylic. The melamine foam features micro-abrasive technology to easily remove algae from your aquarium's glass. They are particularly effective at removing algae from scratches. They are chemically inert. Their white color contrasts with dark algae, making it easier to spot areas to be cleaned.