The necessity of supplementing depleted minerals and micronutrients to reef tanks is due to enhanced growth rates of corals and marine algaes in reef tanks, thus its importance is not to be underestimated. Fauna Marin provides a complete product line for the easy supplementation of calciuim, magnesium, carbonates as well as essential trace elements. Fauna Marin sticks to its principles; best results obtained by purest chemicals.