<p>Algae Remover Aquarium Cleaning Pad Safely Removes Algae and Hard Water Deposits,"Made of nontoxic, recycled material, this nonabrasive pad safely cleans any aquarium surface including glass, acrylic, plexiglas or plastic&#046; Removes algae, water lines, salt residue and hard water deposits and is handy for cleaning plastic plants, ornamen","Before each use, wet the pad, then gently rub surfaces to be cleaned&#046; Rinse pad with tap water after each use&#046; Avoid getting sand or gravel on the pad as these will cause scratches to surfaces&#046; Avoid extreme pressure as this may cause surface scratches o","pad with handle (18)"""</p>