8oz of pest free sea lettuce. Grows faster than chaeto for nutrient export and tangs absolutely mow it down, so you can grow it in the fuge and feed it to the display. 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.