At Coquina Beach, crews are out early using beach rakes to clear dead fish. The fish are dying because of a toxic algae bloom known as red tide. Published August 15, 2018 at 4018 × 2264 in Florida’s Gulf Coast Battles Deadly And Smelly Red Tide At Coquina Beach, crews are out early using beach rakes to clear dead fish. The fish are dying because of a toxic algae bloom known as red tide.