Blue Planet Filter Media is a pack of replacement filter cartridges suitable for use in smaller fish tanks. These handy packs contain sponge, activated carbon, and zeolite to help remove harmful bacteria and ammonia from your aquarium and maintain fresh, clear water and a habitable environment for your pet fish to thrive. The key features of the Blue Planet Filter Media are:

• Replacement filter boxes constructed from the sponge, activated carbon, and zeolite.
• Contains zeolite to reduce harmful ammonia build-up from food residue and pet waste.
• Supports aquatic life with a bacteria-free environment.
• Helps maintain a longer and higher quality of life for fish.
• Activated carbon removes nasty odour build-up and cloudiness from tank water.
• Filter replacement is recommended every 3-4 weeks.