These little fish have tons of personality and love to find a favorite spot in the aquarium to call home. They will often use rock crevices, caves, and empty barnacles to hide their body and allow their head to poke out. They love to graze on algae throughout the aquarium. The Bicolor Blenny are great for reef tanks. It is not recommended to put more than one blenny together unless in a larger aquarium. The diet of the Bicolor Blenny should include seaweed, including frozen and dried foods containing marine and blue-green algae, brine shrimp. It will also feed on (and help control) algae growing in the aquarium.