Whether you're a hatchery manager, breeder or fish hobbyist, what's more important than high-quality, nutritional food? Pentair AES aquaculture feed is packaged and priced for the professional. Formulated from egg yolk, this food is a high protein/high fat flake. It is great for fattening juvenile/larval fish and thin fish. International customers: Check with your customs agent to determine whether this product can be shipped to your country.