Laguna Mini Bio-Max Biological Filter Media is great for biological filtration. It offers an abundant amount of surface area for beneficial bacteria to grow. Just add the Bio-Max to your pond filter, the beneficial bacteria will begin to grow and filter the garden pond water.
Ideal for underwater filters.
Promotes, protects and encourages beneficial bacteria in pond water resulting in a clean, clear pond.
Large surface area and number of pores perfectly sized to allow bacterial colonies to thrive which maintains a biological balance in pond water.