Tetra Whisper Cartridges make clean water simple and efficient. Ultra-activated carbon absorbs odors and discoloration while dense, dual sided mesh catches debris and fish waste to keep water crystal clear and promote healthier fish.

• Keeps water crystal clear
• Ultra-activated carbon absorbs odors and discoloration
• Dense, dual sided mesh catches debris and fish waste
• Promotes healthier fish
• 6-Pack, small Whisper Filter Cartridges

Keeps water crystal clearWhisperTetra