When Snorkeling in Miami, you will get so see Corals which are actually animals and they can exhibit fluorescence. When illuminated with blue light, their vibrant colors become more prominent. Corals feed on small fish and plankton and have the ability to move throughout their lifespan. They play a crucial role in supporting 25% of ocean life and are essential for the health of the ocean Unfortunately, climate change poses the biggest threat to the survival corals.