This special salt is designed to create the salt solution required for hatching brine shrimp – Artemia salina – nauplii. It does not contain iodine, which is toxic for shrimp larvae. The salt has been enhanced with an additive to raise the pH of the solution to 8, the most favourable level for producing the maximum hatch rate. If all the instructions for hatching Artemia salina are followed, then using this special salt for hatching guarantees a 90% hatch rate from Tropical Artemia salina cysts. 15-20 g of salt should be dissolved in one litre of water. Brine shrimp nauplii are one of the best live foods for marine and freshwater fish fry and other small fish, as well as many marine invertebrates.