... Mg of manganese sulfate 12000 [ application object ]It is applicable for various fish, prawns, crabs, turtle, eel, frog, aquatic ... , prevent the weather for the sudden, fishing, transportation, such as pesticide caused by stress reaction.[usage and dosage ]Every tons ... carp 200-400 grams, other fish-200500 grams, mixing materials feed.[precautions ]1, the product must seal preservation.[storage ...