Aquarium Cleaning Magnets - Algae Free

The new "Plus Series" has a detachable and replaceable scraper blade for glass (stainless steel) or acrylic (plastic) aquariums and will make algae cleaning quick and easy. With its large 4" x 2" cleaning area and extra strong magnets it will zip through the toughest of algae. Its floating inner assembly will float to the surface if disengaged for easy retrieval. Contents: One outer wood piece, one inner floating scrubber with velcro, one plastic scraper blade for acrylic, one stainless steel scraper blade for glass aquariums, one white acrylic-safe cleaning pad and direction card. Piranha: Glass and acrylic aquariums 1/4" and 3/8" thick Glass aquariums holding 30 to 125 gallons Acrylic aquariums 36" long and 20" high Hammerhead: Glass and acrylic aquariums 1/2" and 5/8" thick Glass aquariums holding 110 to 200 gallons Acrylic aquariums 48" long and 30" high Tiger Shark:  Glass and acrylic aquariums 5/8" and 3/4" thick Glass aquariums holding 200 to 350 gallons Acrylic aquariums 7