sera marin Coraliquid Coral Food The liquid plankton food for filter feeding invertebrates sera marin Coraliquid is the liquid staple food consisting of a carefully manufactured, stable suspension of very fine food particles for corals and filter feeding invertebrates in marine water. The structure and contents correspond to the natural nutritional spectrum - with a very high percentage of plankton organisms such as Spirulina and Krill - of these animals optimally fulfills their requirements. Growth and coloration are supported. The particles floating for a long time as well as the liquid formulation ensure optimal distribution in the entire tank.