MUYYIKA Filtration Wool Mat, Easy to Use, Filtration Material
Made of high density cotton fiber material to keep it firm. When placed in the habitat of a fish, it helps to maintain a more livable state. Please note that this should be properly maintained through regular replacement.
Cut as needed.It is very versatile and can be used in salt and freshwater environments. Roll of this mat can be cut to any size or shape needed for the tank.