Juwel Carbax Size:Medium This mat promotes beneficial bacterial

This mat promotes beneficial bacterial growth

Measures magnesium concentration in marine aquarium water

With Tetra Goldfish Flakes

as well as freshwater ponds

Juwel Carbax Size:Medium This mat promotes beneficial bacterialJuwel Carbax Juwel Carbax is a hard coal based granulated active charcoal filter medium for freshwater and saltwater aquariums. It is designed for aquarium keepers who want to clean and decolourise aquarium water by absorbing odours, turbidity and toxic compounds. Developed specifically for cleaning and decolourisation of water based liquids, Juwel Carbax uses fully activated charcoal grains rather than activating only the outside surface of the