Product code: iCLN-0N18285

Tetra Test GH

$91.00

The total hardness (GH) of the water is formed by various ions through concentration, such as magnesium and calcium. The GH value influences the health of fish, plants and above all the important microorganisms. The best GH value for ornamental fish is between 6 and 16¡ dH. Good and high long-term stability and long range. Suitable for fresh and saltwater aquariums and ponds.