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K1 micro is a new filter media developed by Evolution aqua for use in bead filters, conventional pond filters or aquarium filters for biological and mechanical filtration. K1 micro is a smaller version of K1 media, the class leading filter media in both koi and aquaculture filtration. Each piece of K1 micro has the same wheel shapeddesign as K1 media, but is manufactured in a smaller size enabling K1 micro to provide an increased protected surface of 950 m2 per m3. K1 micro provides a range of filtration benefits in both static and moving bed filters including improved nitrification / de -nitrification, bio film protection and better solids handling to increased water health and quality.