Phosphate free. Turtle GH Conditioning Salts increase the GH (general hardness) of water to the level required for good health in aquatic animals.  These salts add calcium, magnesium and trace elements to water, adjusting the mineral balance to contribute to the good health, strong shell and longer life of your turtles, shrimp, snails, crustaceans and other aquatic animals that require a bit of extra calcium.

Directions:  1 level teaspoon or 5g to 10 litres of water will raise GH by approximately 9dGH or 160ppm.