Tropic Marin Salt is a favourite with millions of hobbyists around the world and is also the preferred salt of many of the world's leading professional institutes, hatcheries and public aquariums. - True to nature. - Contains all 70 trace elements found in natural sea water. - Manufactured from pure, pharmaceutical grade ingredients. - Nitrate and phosphate free. 25kg bucket will produce 750 litres of saltwater.?
