The marine algae Caulerpa brachypus is making a return appearance in Martin County, Florida. As reported by The Stuart News, divers spotted the algae snagged on part of an artificial coral reef known as the House of Refuge. Scientists think cold waters kept the algae from showing up for the past nine months. No word on whether they are removing the offending seaweed. You can read past ISW posts about the C. brachypus in Marin County by clicking here.