Blue Tang? Don't you mean Royal Blue tang? After all, we ARE the only members of the genus Paracanthurus. Our noble line is found all over the world, though never in very large numbers. (We're very exclusive)
We love to nibble the algae on coral reefs, or you may see us in a large, beautiful aquarium, where we graciously allow ourselves to be admired (royalty must always deal with public appearances with dignity, so please don't tap on the glass, we are NOT amused!)