Product features:

• - Perfect for biological and mechanical filtration.

• - Ceramic Rings are highly porous and create optimal living conditions for nitrifying bacteria and other microscopic organisms.

• - 500 grams of high quality Ceramic Rings

• - Comes in handy net bag for use in your sump

• - Can also be used in a reactor
  

Package incl.:

• 500g  x Aquarium ceramic rings