Biological

2 results
starting at 7,90
In stock
  • Optimised bio-filter medium made from sintered glass
  • High bulk density due to spherical shape
  • Very dense colonisation of bacteria
  • Reusable
starting at 15,90
In stock
  • Highly porous material made from sintered glass
  • Excellent conditions for bacteria cultures
  • Suitable for fresh and marine water
  • Reusable