Acanthemblemaria castroiis commonly referred to as Galapagos Barnacle Blenny. Difficulty in the aquarium: Not suitable for home aquaria!. A aquarium size of at least 100 Liter is recommended. Toxicity: Toxic hazard unknown.
Southeast Pacific: endemic to the Galapagos Islands.
Lives in empty barnacle shells. Often perches in the opening with only the head protruding. Seldom seen in the open. Darts out to nab bits of floating food.
Oviparous. Eggs are attached to the walls of the parent's shelter and are brooded by the male parent