5 TIMES REWARD POINTS - FREE SHIPPING on dry goods orders over $99.00 and $250.00 on Livestock.

CerMedia MarinePure Ceramic Biofilter Media


More Views

CerMedia MarinePure Ceramic Biofilter Media


See Individual Products

Reward Points You will earn 20 Points for writing a review and 20 Points for rating this product.
CerMedia MarinePure Ceramic Biofilter Media is available in blocks, plates, spheres, cubes and cartridge form factors.

Availability: See Individual Item

Product Name Price Qty
CerMedia MarinePure 8" x 8" x 1" Plate Media
(Order by 3:30pm EST for Same Day Shipping (M-F))
CerMedia MarinePure 8" x 8" x 4" Block Media
(Order by 3:30pm EST for Same Day Shipping (M-F))
CerMedia MarinePure 1.5" Spheres 2 Quarts
(Order by 3:30pm EST for Same Day Shipping (M-F))
CerMedia MarinePure 1.5" Spheres 1 Gallon
(Order by 3:30pm EST for Same Day Shipping (M-F))
Pay over Time with PayPal Credit!



The media’s composition is similar to natural rock formations. MarinePure provides approximately 150,000 sq. Ft per cu. Ft (510 m2/L) of accessible surface area.  MarinePure Biofilter Media creates a stable home for a dense population of beneficial bacteria that remove ammonia and nitrites from your aquarium. Some systems will also see a decrease in nitrates. MarinePure Biofilter Media will work in sumps, trickle filters, wet/dry filters, hang on the back filters or directly in the tank.


  • 100% Tank Tested and commonly used in commercial aquarium applications
  • Most technically advanced bio-filtration substrate
  • High usable surface area for beneficial bacteria growth
  • Open porosity - maximum bacteria exposure to contaminates and promotes excellent water circulation and less clogging
  • Specifically designed to target ammonia and nitrite removal and minimizes nitrates
  • Inert and chemically stable
  • Greater than 80% open porosity
  • Provides consistent water chemistry
  • Reduces tank maintenance
  • Able to support large fish loads
  • Can be cleaned, reused and sterilized for years

Cermedia Scan

Surface areas:
1½” Marinepure Sphere:  240 sq ft
8"x8"x1” Marinepure Block: 5,750 sq ft
8"x8"x4”Marinepure Block: 23,000 sq ft


Marine Pure Spheres are small, spherical filtration media for use in canister and similar filtration systems. Perfect replacement for bioballs. They are available in 1½” diameters.

• over 100 times the surface area per cubic inch than any other biomedia such as bioballs
• Stays wet during power outages or pump failure which will keep your nitrating bacteria alive
• Perfect area for copepods and amphipods to thrive and reproduce
• Wet-dry filters

Blocks & Plates

MarinePure is also available as 9”x9”x1” Plates or 9”x9”x4” Blocks.
• Add to existing tank set ups for additional filtration, simply set the block down in your sump
• Place under gravel bed for new tank set up
• Wet-dry filters
• Blocks are ideally suited for large setups


Cermedia recommends using a least 1 quart of Spheres to eliminate ammonia and nitrate from marine aquariums.  The spheres will also reduce nitrate but we recommend using the 4 x 4 x 8 blocks to further reduce nitrate.

Recommended Ratios:

Cermedia Spheres:

  • 1 Qt. per 100 gallons of aquarium water

Cermedia 4x4x8 Blocks:

  • 1 Block   - Up to 100 gallons of aquarium water
  • 2 Blocks - Up to 250 gallons of aquarium water
  • 3 Blocks - Up to 500 gallons of aquarium water
Additional Information

Additional Information

Manual No
Product Specs


Manufacturer CerMedia


Tony R

Using it on my FOWLR tank and reef.

How do you rate this product? *

1 1 star
2 2 star
3 3 star
4 4 star
5 5 star