Fauna Marin Kalkwasser is a convenient and efficient solution designed to maintain calcium and alkalinity levels in reef aquariums. By using calcium hydroxide, it provides a steady supply of essential minerals that support the growth and health of corals, especially SPS corals which have high calcium demands. This additive helps stabilize pH levels, prevents sudden fluctuations that can stress marine life, and inhibits the growth of nuisance algae by creating an environment less favorable for their proliferation.