sera Shrimps Natural is the staple food consisting of carefully manufactured granules for all shrimps in fresh and marine water. The balanced composition with natural ingredients such as Spirulina and alder cones provides everything the shrimps require for healthy growth and safe skin shedding. Fertility, splendid coloration and disease resistance are strengthened in a directed way. The sinking small granules remain stable very long so the shrimps � according to their natural feeding habits � can grab and eat off it without polluting the water.