The One Spot Blenny is also referred to as the Big Spot or Triplespot Blenny. Its body is a mottled green and dark brown with white spots. The belly is a light tan to cream color and the dorsal fin has accents of yellow and red.A well-established 30 gallon or larger aquarium with multiple swimming levels and plenty of rock is a suitable environment. The One Spot Blenny is not usually aggressive unless tank mates appear to have a similar shape as it does. It is best to house singly unless kept in a larger tank and the two are a mated pair. It tends to perch and hop from rock to rock looking for microalgae to graze on.
The One Spot Blenny does best in well-established aquariums with large amounts of natural algae to feed on. The diet can be supplemented with vegetable matter, Spirulina, and herbivore preparations.