Tetra Filter Aquarium Cartidges, Removes Odors and Discoloration, Ready to Use, Small Whisper Filters, 2 Count

REPLACEMENT CARBON FILTER: Keeps aquarium water crystal clear – removes odors and discoloration.

CATCHES DEBRIS: Dense, dual-sided mesh filters debris and fish waste.

FITS TETRA WHISPER WATER FILTERS: Color coded to make it simple to remember which replacement cartridge size to purchase.

CONVENIENT: Replacement filter cartridges are fully assembled and ready to use.

USAGE: Change monthly or sooner if needed.

Keeps water crystal clear

Removes odors and discoloration

Easy to use

Two small, disposable filter cartridges

Fits Whisper In-tank 3i

It is recommended that you replace your Whisper Bio-Bag when water begins to overflow excessively from the Wonder Tube chamber, or once per month.