Fluval Nano Bio-Foam, 2pcs (current pkg is yellow/gold in color)

Tailored for the Fluval Nano filter (Item #A455), this Bio-Foam effectively captures debris to ensure superior mechanical filtration.

• High-quality mechanical filter media
• Custom fit within the filter chamber to block debris leakage
• Optimal pore structure promotes smooth water flow, reduces blockages, and ensures durable filtration
• Expansive surface area supports the proliferation of helpful nitrifying bacteria

• Precisely crafted for the Fluval Nano Filter Perfect for use in freshwater setups