Instant Algae^®
Chaetoceros
(Chaetoceros gracilis / muelleri)

Chaetoceros is a medium-size diatom that is extensively used in the aquaculture industry, primarily for bivalve shellfish and shrimp. It is alternatively called Chaetoceros gracilis (CHGRA) or Chaetoceros muelleri, depending upon which culture collection it comes from. 

Reed Mariculture is no longer producing Chaetocerous, but has replaced it with several better quality algae including Pavlova, and Thalassiosira weissflogii.