32oz of dense Nannochloropsis, the small cell phyto that rotifers and copepod nauplii need. EPA rich and the backbone of most breeding setups. Everything is cultured in house in Vermilion, Ohio and bottled fresh the morning it ships. Orders go out Monday through Wednesday only so nothing sits with a carrier over the weekend. 100% live arrival guarantee, if anything shows up DOA I reship it free, no photos or claim forms needed.