The Two Spot Blenny, Ecsenius bimaculatus, features two characteristic black splotches on either side of the stomach. They are hardy and can be housed with other peaceful fish in a reef tank setting, but may become territorial towards other blennies, gobies or dartfish in smaller tanks.

Blennnies are known for their incredible jumping abilities, so having a tightly secured lid is suggested. Diet should include a variety of mysis shrimp and vitamin enriched brine shrimp as well as spirulina, marine algae, seaweed and algae based foods 2-3 times daily.