aquavitro® pad is the extremely durable algae pad for both glass and acrylic aquariums. Made from a durable synthetic cross-linked fiber, it has an extended life that outlasts most competing products. Its size and thickness allows you to easily remove tenacious algae from the broad sides of the aquarium, corners, and even from scratches. Finally, its white color makes it easy to see what you want to remove and when you've effectively removed it.