Often over-looked for brighter and more colorful fish, the Blenny is an absolute must for any aquarium. Though they are small, Blennies’ long bodies, large eyes, and funny faces, as well as their amusing posturing, are great fun to watch. Blennies spend most of their time on or hovering just above the sea floor and are often seen propping themselves up on their pectoral fins and observing everything that goes on in what they consider to be their kingdom. Certain types of Blennies have antennae-like protrusions called cirri which make this posturing behavior even more amusing. Nervous and territorial, nosey and energetic, the Blenny is often seen darting into a rock or under the sand and then quickly zipping back out and across the tank to see something that has caught its interest. What they lack in color they certainly make up for in personality.