A unique composition of specially selected probiotic bacterial strains designed to accelerate the decomposition of organic matter. Decomposes toxic substances for fish and by releasing macro and micronutrients increases their availability. Pro Bio S is especially recommended for large, demanding and heavily stocked tanks. Bacteria present in Pro Bio S initiate the process of reducing harmful nitrates and phosphates, which are latter removed from the water by a protein skimmer. Pro Bio S creates a natural biological filter, hindering the development of pathogenic microflora. The use of probiotic bacteria significantly reduces the risk of diseases of aquarium inhabitants and increases their resistance to stress. Bacteria are also a great source of bacterioplankton – the most important coral food. In order to keep the probiotic bacteria in good condition, we recommend using -NP Pro as a nutrient solution. A natural precipitate may form on the surface of the product. This has no effect on the quality and effect of the product.