Check the listing for details. Algae Free Piranha Float Plus Floating Magnetic Aquarium Tank Scraper Cleaner. Condition: New. Listed at 59.99 USD. Be confident in your purchase, we are a Certified Algae Free Dealer, how cool is that?!? With properly sized magnets and now includes the scraper attachment, Algae Free has made one of the best algae scrapers in the industry. Most of their value is the fact all of them (except the Great White) do float if the connection through the aquarium is lost for easy retrieval, which is the frustrating point for most other magnet cleaners in the industry. 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. Our cleaning magnets are made with Neodymium Rare Earth Magnets, one of the strongest magnets in the world! Algae Free LLC don't use surplus magnets -- only new. All of our cleaners are made of the finest, safest and most cost-effective materials available. The outer magnet assembly is handcrafted in the USA. Strong, high-quality neodymium rare earth magnetsReplaceable scraper blades for glass and Acrylic aquariumsReplaceable inner scrubbing pad with nontoxic adhesive backingReplaceable felt pads for the outer cleaning assemblyFloating interior magnet assembly (except Great White models)Inner assembly is non-toxic and can be left inside tank all the time -- it will not rust!Can be used on all glass aquariumsAcrylic-safe inner scrubbing pads make it ultra safe to use on acrylic aquariumsCan be used in fresh and salt waterDecorative finish that becomes part of your aquariumLimited 2-year warranty on material and production defectsFitment: Perfect for Nano and Pico tanks that have thin glass or acrylic. The wet side floats for easy retrieval when separated from the dry side. Glass aquariums holding up to 30 to 125 gallonsAcrylic aquariums 36" long and 20" highLarge 4" x 2" cleaning area