MarinePure High Performance Biofilter Media Block, 8 x 8 x 4 in

This MarinePure block is a ceramic biological filter media with a large surface area and open flow porosity. It suits marine and freshwater aquariums that need more room for beneficial bacteria.

• Size: 8 x 8 x 4 in block
• Inert ceramic material
• Helps with ammonia and nitrate removal
• Supports nitrate reduction
• Lighter than live rock

Rinse the media in dechlorinated water before use and place it where water flows through it in your filter or sump.