Marinepure Block High Performance Biofilter Media (8X8X4 In)
Ceramic Bio-Filter Media with Vast Surface Area AND Open-Flow Porosity. Designed to improve upon deep sand beds or live rock to lower nitrates in marine freshwater aquariums. Will also remove ammonia nitrites. Use in sumps or in extra large filters.
- High Performance Biofilter Media
- Suitable For Fresh And Salk Water
- Provides Consistent Water Chemistry