Sera Micron Growth Fry Food is a complete powder diet suitable for juvenile and fry fish and amphibians. This finely powdered food optimally resembles natural plankton in its contents (50 percent Spirulina and 16 percent Krill, among others) and structure (dust fine particles float in the water) and supports healthy growth, disease resistance as well as optimal development and colour formation. The water is not unnecessarily polluted due to its excellent digestibility.