It will do well in a 30 gallon or larger aquarium in a well-established reef system with plenty of rock work. Keep only one per tank unless you have a mated pair. It may nip at stony coral polyps or clam mantles but is not bothered by other tank mates unless predatory. It is considered a hardy fish in an aquarium if given a crop of natural microalgae to feed on.
The Orange Spotted Blenny will want to eat microalgae growing fresh within the tank. A diet providing marine and blue-green algae (Spirulina) will help the Orange Spotted Blenny thrive, along with other vegetable matter including frozen and dried foods for herbivores.
Approximate Purchase Size: Medium: 2" to 3" Large: 3" to 4-1/2"