robint
Contributor
The blue ring octopus was on the side of the C53 wreck
Blue ring octopus is an octopus in Pacific, very deadly, and definitely not this guy.
Check out Humann's Reef Creature ID.... I think it is the Caribbean Two-spot Octopus which is characterized by "a blue ring which creates a false eye marking, called an ocellus, below the true eye. Skin texture forms a reticulated pattern of patches and thin grooves. Color extremely variable, often mottled."