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.
Powerfalls Spillway Bio Media
Laguna Biological Bio-Max, 350 g
Free Standard Ground shipping within the Contiguous US on all orders over $40.00. * exclusions apply (Free shipping not available to HI, AK and PR)