Tail spot blenny. Such a character and pretty in it's own way. Oh man those are the best seahorses ever! I've seen them in person at Birch Aquarium. I watched a video about the ones at the Hawaii public aquarium (forgot the name) and they cost $10,000 each and only last one year!!! The people at the Hawaiian public aquarium dug a $20,000 hole just so the tide could bring in a special tiny red shrimp to live in the "pond". That's what they feed their sea dragons and they have been living 4 or 5 years. Sorry about the blabbering, but man..so interesting!