SeaChem Glass and Acrylic Aquarium Cleaner, 500 mL is a multi-surface cleaner for use on the exterior of glass or acrylic surfaces of aquariums as well as other surfaces. Aquarium Cleaner does not contain ammonia and is perfect for safe use on and around aquariums or terrariums. Aquarium Cleaner dries quickly to leave a streak free clean surface. Though Seachem Aquarium Cleaner is safe for aquariums and terrariums do not use directly in aquariums or terrariums waters.