Specially designed for Fluval FX4, FX5 and FX6 high-performance external filters, Bio-Foam filter blocks ensure effective mechanical filtration by trapping large particles and debris.
Key Features:
- Provide mechanical filtration;
- Effectively trap most waste and debris;
- Include a complex foam structure that maintains uniform water flow and naturally promotes the growth of beneficial bacteria;
- Are custom-fitted to prevent debris from passing through;
- Enhance the biological filtration process;
- Are available in a convenient 3-pack;
- Should be replaced every 6 months;
- Suitable for fresh and saltwater aquariums.
