KNOP KORALlith is a natural and phosphate-free calcium granulate that originates from fossilized marine habitats.
It consists of pure calcium carbonates at almost 99 %.
Because of its purity and the associated minerals and trace elements KNOP KORAL lith is perfect as a substrate for calcium reactors, filter material and for many other purposes in the reef aquarium hobby.
Container Size: 15 lbs.
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