Alfagrog is a very porous biological filter media that has a large surface area for bacteria to congregate in.
As part of Swell's own brand you can increase the quality of the water in your pond at a cheaper price than most other brands, whilst still getting the same rich, high quality material.
Alfagrog is ideal for use in any biological filter system. It is very popular among koi keepers and commonly used in multi chamber filter systems. Many pond keepers opt to swap plastic bio media for this material for a longer life and better results.
- Approx weight 13.5 kg.
- Approx 1 Cubic foot in volume.