Bioptim also provides trace elements: sulphur for proteins iron for plants and fish blood cobalt for B vitamins calcium, magnesium, manganese, zinc, molybdenum and potassium,Dynamise the cellular metabolism of most of the living organism in freshwater aquariums,Bioptim speedily accelerates the digestion of organic matter It also facilitates the elimination of nitrates and phosphates, Use BioDigest when you want to have a better water quality in you saltwater reef aquarium