This is under aquarium lights - no flash allowed at this exhibit. I don't know what color they really are, but the ones I've seen on the Internet are yellow. In an awesome display of camouflage, they blend in with the seaweed where they live and mimic its movements, such that they are almost impossible to see. Obviously related to Sea Horses and they are endemic to the south coast of Australia. God must have been smiling when He created this species. :) And yes, this is a fish.
Tags: Leafy Seadragon Glauert's Seadragon Phycodurus eques Birch Aquarium NGC
Closely related to the Leafy Seadragon, the Weedy Seadragon is also endemic to the south coast of Australia, where it is classified as Near Threatened, due to habitat loss, human activities, and pollution.