Tetra Whisper Bio-Bag Aquarium Filter Cartridge, 6 Count

• Carbon filter cartridge helps keep aquarium water clear while removing odors and discoloration.
• Dense, dual-sided mesh filters debris and fish waste.
• Color-coded and compatible with Tetra Whisper Water Filters (sold separately).
• Easy-to-assemble.
• Change monthly or sooner if needed.

Simply detach clip from Aerobic Frame and slide the filter bag over the frame. Add one packet of Ultra-activated carbon. Press the Aerobic Frame flaps down over the top of the filter bag and press the clip down over the flaps. Rinse under cool tap water to remove carbon dust. Insert the Bio-Bag into filter slots.