refuguim

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    PinCushin Urchin living in a refugium?

    In the past, I’ve typically kept my refugium livestock free, only having macro algae in it. Right now however, it’s being overrun with green hair algae. You can see I literally have GHA growing on my chaeto. I was thinking about placing a Pincushin Urchin in there to clean up some of that...
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