NorthFin™ Soft Coral Food is a highly-bioavailable, natural dry 250 micron powder made from 100% Antarctic Krill. Krill contain high levels of protein providing your coral with vital amino acids in addition to essential fatty acids, vitamins and color-enhancing carotenoids like Astaxanthin. NorthFin™ Soft Coral Food is recommended for all filter feeding corals such as Goniopora, Ricordea, Mushrooms and Zoanthids.