Description
- Special nested-porous structure enables higher proliferation rate of aerobic probiotic, which rapidly builds up nitrification system. Keep up the water quality in crystal clear condition.
- Water content and water absorbing capacity greatly surpass other porous bio balls.
- Porous Bio Rings have pores both outside and inside the rings. Compare to other similar products which only have pores on the outside, ISTA porous bio rings have ten times more surface for bacteria to grow.
- Suitable for fresh water and saltwater.