Corals have an extraordinary ecological role. They serve as the main habitat for thousands of species and are the base of the coastal food web. Corals also protect from coastal erosion, to mitigate greenhouse gases and global warming, to boost the fishing industry, and to serve as places for tourism and recreation. However, in the last decades, many corals have been dying. The attackers are many: turbidity, sedimentation, fecal contamination, climate change and even military bombs.