Safely removes the white film without scratching or damaging your aquarium glass!
Removes white film & algae
No toxic or harmful chemicals
Use water from your aquarium
Will not harm aquarium inhabitants
Safe to use on glass & acrylic aquariums
Pack of 3
4in x 3in x 1in high-density melamine sponges
Caution: Keep out of reach of children.
Ensure that sand and/or other hard material does not come between the sponge and your aquarium glass