Bio-Foam filter blocks, specially designed for Fluval 406 and 407 high-performance external filters, ensure effective mechanical filtration by trapping large particles and debris.
Key Features:
- Provide mechanical filtration;
- Effectively trap most waste and debris;
- Feature a complex foam structure that maintains uniform water flow and naturally promotes the growth of beneficial bacteria;
- Are custom cut to prevent debris bypass;
- Enhance the biological filtration process;
- Are available in a convenient 2-pack;
- Should be replaced every 6 months;
- Are suitable for both freshwater and saltwater aquariums.
