Hole size: fine, works for very fine filter media.
Good for use with bio balls, zeolite, ceramic media, rock, and crushed coral and any other aquarium filter media.
Fit perfectly in a variety of filters including canister filters, power filters, sumps, wet/dry filters and pond filtration systems to hold media together and keep aquarium clean
Plastic zipper design can be used for both freshwater and saltwater tank.
These unique mesh filter bags are easy to fill and empty with top zipper design to keep filter media secure. Our bags are durable, washable, and can be reused.
