Bicolor blenny
Ecsenius bicolor
FishSaltwater
- Care level
- Easy
- Temperament
- Semi-aggressive
- Reef safe
- Yes
- Recommended tank
- 150 L
- Maximum size
- 10 cm
- Temperature
- 24–27 °C
- pH
- 8–8.4
- Diet
- Herbivore
Care at a glance
The bicolor blenny is grey-blue at the front and orange at the rear, with a blunt head and two small tufts above the eyes. It hops from rock to rock and vanishes into a hole at the slightest disturbance, only to peer out again inquisitively.
It grazes algae off the rock and therefore needs grown-in stone plus vegetable supplements; if it gets too little, it will sometimes start nipping at corals. Keep one per tank, because towards its own kind and other blennies it is distinctly territorial.
Good to know
Related species
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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.