Dennerle Shrimp King bio tase active is a biofilm Optimiser and growth enhancer for shrimps. With probiotic lactic acid bacteria, prebiotic mannan-oligosaccharides (MOS),?-glucans, vital vitamins, trace elements and essential amino acids. Promotes the development of natural biofilm as a valuable source of food. Promotes healthy digestion and strengthens immune defenses. With natural cleaning minerals for clear and healthy aquarium water. Dosage of dennerle Shrimp King bio tase active depending on the population density, 1-2 level measuring spoons for every 50 liters of aquarium water, once or twice a day. Do not exceed dosage. During First use, begin with a half dosage for about a week.