so in the biocube the zoas are getting covered in green algae. I'm not home right now, but the gf is testing the water and doing a big water change. the only thing that has changed, is that the blue channel on the lights went out and I'm still waiting for the replacement power supply to get here. Is there a safe way to remove the algae? The zoas wont open due to the algae growing on them. Everything else in the tank is fine.