Activated Carbon Freshwater

Hydor activated carbon with low ash content for freshwater aquariums is a filter media designed to obtain crystal clear water without affecting pH for even the most demanding hobbyist. It does not release phosphates, heavy metals, and other substances that are harmful to aquatic life.

Activated Carbon Saltwater

Hydor activated carbon for saltwater aquariums is the perfect filter media for hobbyists seeking to eliminate organic residues and dyes quickly without affecting the chemical values of the aquarium. It does not release phosphates, heavy metals, or other substances that are harmful to aquatic life.

Zeolite

Hydor zeolite, for freshwater and saltwater aquariums is a powerful, ultra-pure natural adsorbent selected and tested by Hydor laboratories. Ammonia can be quickly trapped through the high ion exchange capacity. Hydor zeolite helps to eliminate dyes, drug residues, microscopic algae and any odorous substances, quickly restoring aquarium water clarity. It does not release phosphates, heavy metals, and other substances that are harmful to aquatic life.

Quartz Bio-Rings

Hydor Bio-Rings for freshwater and saltwater aquariums are created through the high-temperature sintering of inert quartz. Thanks to the macroporous structure, Hydor Bio-Rings is the perfect substrate for biological filters where the main goal of the hobbyist is the development and growth of bacteria colonies (aerobic and anaerobic) on the large surface area available (8.25 m2 per litre of Bio-Rings). Bio-Rings do not release phosphates, heavy metals, and does not change the pH of the aquarium.