... designed to improve the growing conditions for cultivating fishes, shrimps, crabs, shells and clams.EfficacyOur company new generation of "fish ... designed to improve the growing conditions for cultivating fishes, shrimps, crabs, shells and clams. It is featured by pond-fattening, ... kinds of sea water or fresh water breeding fish, shrimp, crabs, shellfish, algae, etc.Use instruction 1- Initial use at ...