Grape Caulerpa is a great addition to any refugium. As with any macroalgae, grape Caulerpa requires nitrates and light. Grape Caulerpa grows very rapidly. It is recommended that, if introduced into an aquarium, there are fish and/or inverts that will eat the Grape Caulerpa, such as rabbitfishes and tangs. May attach strand to small piece of rock rubble with a rubber band.