A species of fish we see often while we’re snorkeling is the yellowtail damselfish (Microspathodon chrysurus). The juvenile is stunning; one to two inches long, deep blue in color with fluorescent blue spots. They virtually glow in dim light. With age, the spots fade until they’re only visible along the top of its head and back, and its tail turns bright yellow. They’re always something fun to look for when we’re underwater.