Crystal Bio Media is a unique, environmentally friendly filter medium made of "foamed" glass at 900 ° C, creating a superior cell structure. This ensures that the surface area is at least 10 times greater than that of most synthetic alternatives.
Crystal Bio Media is an excellent biological media for pond filtration systems supporting big fish stocking densities. It is also ideal for feeding regimes that are maximised for fish growth.
Furthermore the weight of Crystal Bio Media is extremely low in comparison with other porous filter media.
