Replacement / Top-up Filter Media for the AllPondSolutions Aquarium & Pond Filter Range.

Good for use in calcium reactors to help raise the PH of the water and restore magnesium and calcium levels for growing, thriving corals.

Features.

Suitable for Salt and Fresh Water
Highly Efficient - Porosity Rate 35%-60%
Both Physical and Biochemical Filtering
Long-life, Clean, Non-hazardous, Odourless and Insoluble
Acid-proof, Alkali-resistant and Salt-tolerant
Suitable for Use Inside Filter, Pond or Aquarium Tank