Natural tropic black water Lastingly stabilizes a slightly acidic pH value Gentle reduction of water hardness Lasting release of valuable humic acids and fulvic acids Natural chelate formers bind toxic heavy metals Prophylactic against spawn fungus and infestation Mucous membrane protecting effect Natural algae prevention by light filtration Slightly amber colored tint enhances stress reducing effect Appropriate blackwater effect for tropical aquariumsThe natural living environments of fish such as discus angelfish or neon tetras are characterizes by very soft slightly acidic and often slightly dark tinted water. You can achieve these so-called tropical blackwater conditions without any trouble and lastingly with sera super peat.The functional granulate consisting of natural black peat lastingly lowers the KH and stabilizes the pH value in the slightly acidic range when simply placed in the filter. Furthermore it continuously releases valuable humic and fulvic acids.