The Piranha Float Plus has a detachable and replaceable scraper blade for glass (stainless steel) or acrylic (plastic) aquariums and will make algae cleaning quick and easy. Its floating inner assembly will float to the surface if disengaged for easy retrieval.

This cleaning magnet is for use on Glass aquariums 1/4″ and 3/8″, Acrylic 1/4″ and 3/16″ thick.