Bulk Tropical/Cold Water GH Conditioner Salt 20kg
This is special blend made for us consisting of a mix of products to raise general hardness.It has added Iodine and Potassium which is good for plants and fish fertility.1 teaspoon (5g) to 8 litres of water will raise general hardness by approx. 8 GH or 140ppm.(For Goldfish use heaped teaspoon as they like slightly harder water). Comes in large strengthened plastic bag.