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Koi Market

CrystalClear® Polish AC™ Activated Carbon

Regular price $55.00 USD
Regular price Sale price $55.00 USD
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CrystalClear® Polish AC™


CrystalClear Polish AC is bituminous coal that has been exposed to extreme heat which activates the carbon giving it potent absorbing powers. The billions of pores within the carbon act as hundreds of sponges soaking in many pond pollutants such as tannins, ammonia, nitrite, and nitrate. The result is a polished, healthy pond environment.

  • Activated pond charcoal removes tannins and chlorine
  • Acts as an odor absorber and removes pond pollutants to keep water clarity crystal clear
  • This carbon charcoal polishes water and removes microscopic debris
  • Removes harmful ammonia, nitrite & nitrate

Temperature Restriction None None
Months of Treatment
for 2,000 Gallons
Up to 3 Months Up to 9 Months
Shelf Life 3-Year 3-Year
Included Mesh Bag (1) 12″ x 18″ Mesh Bag (1) 12″ x 18″ Mesh Bag


Up to 1,000 Gallons 2-1/2 Pound
Up to 2,000 Gallons 5 Pound
Up to 3,000 Gallons 15 Pound

Please note: Above are recommendations. Always read the product label.


Routine Application Rate

Rinse carbon thoroughly before use. Remove bag provided from the bucket and fill with the appropriate amount of carbon for your pond size or filter size. Then rinse the bag thoroughly to remove any carbon dust accumulation. Then apply to the filtration unit.

It is always best to use Polish AC in conjunction with a filter. It is not recommended to use Polish AC by itself within the pond.

Replace bag with new Polish AC carbon every 3 months. It is important to maintain fresh activated carbon especially throughout the spring and summer season when pond pollutants are at their highest levels.

Persistent Problem Application Rate

For large fish loads it is advisable to double the amount of carbon for the pond size.

For Best Results

Make sure to rinse Polish AC carbon thoroughly before placing in filter. Never wash carbon after it has been in the pond with tap water. If carbon is washed vigorously dunk the bag in water with no chlorine present.

Product Notices:

Polish AC carbon can be disposed of with normal waste service.