Live protozoa: Suitable live food for larval fish and shrimp?

Some ciliated protozoa (ciliates) may be a valuable complimentary source of nutrients for first feeding larval stages of farmed shrimp. 

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Zero water exchange
Zero water exchange

Zero water exchange

L. vannamei can be raised at high densities and zero water exchange with acceptable survival, growth and yields while minimizing water-borne diseases.