Algae Free Hammerhead Float Magnet CleanerIts extremely powerful magnets will clean tanks from 75 to 250 gallons, with glass thickness up to 1/2 and 5/8" and acrylic thickness up to 3/8 and 1/2".
Algae Free Tiger Shark Float Magnet CleanerIts extremely powerful magnets will clean tanks from 125 to 400 gallons, with glass thickness up to 3/4" and acrylic thickness up to 3/4".