Ocean Plankton is an excellent treat for turtle, frogs, all tropical and marine fish that offers a higher protein levels. High in vitamins, minerals and natural fatty acids, yet parasite and bacteria free, these small convenient cubes of pharmaceutically freeze dried ocean plankton make an ideal treat or daily diet. Cube size allows for easy food monitoring, preventing excess waste and water clouding. Significantly reduce sodium content. Oxygen absorbers and nitrogen charging significantly reduce oxidation. Lower sodium levels reduce potential health problems common with other freeze dried products. Hikari Bio Pure products never contain artificial color or preservaties.