sera marine GVG-Mix Nature is the staple food for marine fish that does not require dyes and preservatives. The mixture of flakes and dried, whole food organisms such as Krill, bloodworms and daphnia allows for a varied diet. The food is rich in natural minerals and trace elements such as iodine, and thus supports health and fertility. The flakes keep their shape, are suitable for all surface oriented marine fish and do not cloud the water.feeding recommendation sera marine GVG-Mix NatureFeed once or twice daily, only as much as the animals take up within a short time.Ingredients: fish meal, wheat flour, krill (12%), brewers yeast, Ca-caseinate, gammarus, bloodworms (2.7%), daphnia (2.7%), spirulina, whole egg powder, sea algae, mannan oligosaccharides, cod-liver oil (containing 34% omega fatty acids), herbs, alfalfa, stinging nettle, Haematococcus algae, parsley, green-lipped mussel, paprika, spinach, carrots, garlicAnalytical constituents: Crude Protein 47.3%, Crude Fat 7.0%, Crude F