Hagen Laguna Biological Bio-Max

Laguna Biological Bio-Max is ideal for underwater filters. Bio-Max promotes, protects and encourages beneficial bacteria in pond water resulting in a clean, clear pond. The filter media has a large surface area and large number of perfectly sized pores to allow bacterial colonies to thrive which maintains a biological balance in pond water. The Laguna Biological Bio-Max will help work to keep your pond sparkling clean and provide the inhabitants with a healthy home.