Species Profile
Bicolor Blenny
Ecsenius bicolor
Blenniespeaceful
Adult size
4″
Minimum tank
30 gal
Temperature
72–82°F
pH
8.1–8.4
Schooling
Solitary OK
Water level
bottom
Diet
Algae, marine herbivore pellets, frozen mysis
Notes
Front half deep blue, back half burnt orange. Perches in rock holes and pops out to graze. Mostly peaceful but occasionally nips coral polyps — not strictly reef-safe.
Photo: Brian Gratwicke / Wikimedia Commons · Source · CC-BY-2.0