Coarse-density filter media excellent for general-purpose mechanical filtration. Drs. Foster and Smith Coarse (Black) Pads keep aquarium water clear of larger particles and help protect biological filter media from clogs and debris buildup that can affect overall aquarium water quality and health.

Use with our Super Fine Lime Pads or Fine Density Beige Filter Pad to layer varying densities for optimum mechanical filtration. Simply cut to fit any aquarium filter.

Drs. Foster and Smith Coarse (Black) Pads measure 1" thick x 24" x 24". Available individually or in a 6-pack. Made in the USA.

Drs. Foster and Smith Coarse (Black) Pads are also available in 12" x 12" sheets and 10 ft Rolls.

Fulfill virtually any filtration need with our super-convenient selection of cut-to-fit pads available in a variety of styles and densities. Drs. Foster and Smith Mechanical Filter Media available in Carbon Pads, Super Fine Lime Pads, Bonded Blue Filter Pads, Fine Beige Pads, and Micron Felt Pads.

Benefits of Mechanical Filtration
Mechanical filtration can greatly improve the health of most aquariums, and is also important for efficient biological filtration. The process is simple: mechanical filter media strains solid debris such as fish excrement, sludge, uneaten food, or dust from your aquarium as water passes through.

The debris-laden mechanical filter media can then be easily removed and rinsed or replaced. Mechanical filter media not only reduces the amount of solids in your water, but more importantly, it keeps debris from reaching your biological media, building up, and creating dead spots where nitrifying bacteria can't reproduce.