The new MarinePure GEMs Biofilter Media are made with the same formula as popular MarinePure SPHERES, the GEMs are approximately ¾ inches in diameter. They are packaged in hexagonal shaped boxes containing of 90 grams.
- Each box contains over 135 m2 of accessible Surface Area.
- MarinePure GEMs are the perfect size for canister filters, hang on the back filters or nano-tank filter systems.
- This amount of media is good for up to 260 litre systems.
- They are the perfect solution for ammonia and nitrite elimination and most users will also see better control in their Nitrates.