sera guide - Marine aquariums

39 sera has developed the innovative crus- tacean foods sera crabs natural and sera shrimps natural for the various requirements of the crustaceans. The valuable ingredients and the careful processing make these foods an ideal staple diet for crustaceans. The unique nutrient composition results from the sole use of aquatic organisms such as ma- rine fish, gammarus, spirulina and marine al- gae as protein and fat suppliers. The proteins they contain are therefore characterized by an amino acid composition that can ideally be utilized by the crustaceans. sera marin granules is an ideal food for fish that search for their food between coral branches, in the middle water layers or near to the bottom. It sinks slowly, softens quickly but keeps its solid consis- tence. Therefore it prevents water pollution. sera marin gourmet nori provides an ideal diet for most marine fish, crayfish and shrimps, but also sea urchins. In marine wa- ter, it swells within seconds and then is a nat- ural food like hardly any other.