Isochrysis aff. galbana is a marine microalga selected for its high content of omega 3 polyunsaturated fatty acids (esp. DHA). These are the algae of choice for bivalve larviculture. They perform well in fish and shrimp larviculture as a green water treatment. Provifeed Isochrysis is ideally suited for marine fish, marine molluscs and both marine and fresh water shrimps.