Tetra Whisper Bio Bags - Assembled

Clear water is just a carbon filter away thanks to Tetra Whisper's pre-assembled Bio-Bags! These disposable filter cartridges are mesh bags filled with ultra-activated carbon. The dense, dual-sided mesh filters fish waste and other debris, while the carbon absorbs odors and water discoloration even better than competing brands.

Pre-assembled means no messy attempts to fill other filters. Replacement cartridges come in several sizes, so be sure to choose the correct one for your filter.

Filter cartridges should be replaced once a month for optimal, efficient performance. Order a few to have on hand for emergencies. Low prices and timely shipping make being prepared even easier at BigAlsPets.com.