Caulerpa nummularia

By: melev | Tags: | Comments: 0

Macro algae is a way to keep nitrates down in a reef tank, and many grow it in a refugium zone. Although illegal in some states (such as California), Caulerpa nummularia grew well in my refugium, and needs pruning every few weeks. I've found that it will not "go sexual" if the light is kept on 24 hours a day over this species. The above shot was taken where this macro algae grew tightly and densely on the substrate and rockwork. It sends out vines in every direction taking root in the substrate and rockwork. Don't let any of this make its way into the display tank. Trust me. ;)

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