Fluval FX4/FX5/FX6 Carbon Foam Blocks, 2-Pack

Designed especially for high-performance Fluval FX4, FX5 and FX6 external filters, the activated carbon foam pads work extra hard by acting as an effective filter media for both mechanical and biological filtration.

Key Features :

• Provide effective mechanical and biological filtration;
• Effectively remove harmful toxins and odours to keep water crystal clear;
• Trap microparticles and debris;
• Are custom-fitted specifically for FX Series filters to increase filtration efficiency;
• Must be rinsed frequently and replaced monthly;
• Are offered in a convenient pack of 2;
• Suitable for freshwater and saltwater aquariums.