Two Spot Blenny (Ecsenius bimaculatus)

Fish in the family Blenniidae. Beginner care. Reef Safe.

Two Spot Blenny

Quick facts

Scientific nameEcsenius bimaculatus
FamilyBlenniidae
Also known asTwo-spot Blenny, Bimaculatus Blenny
Care levelBeginner
Reef safetyReef Safe
TemperamentPeaceful
Dietomnivore
Adult size5.5 in
Minimum tank size20 gallons
Water parametersTemperature: 72-78°F pH: 8.1-8.4 Salinity: 1.02-1.025
Feeding schedule2-3 times daily

Appearance

The Two Spot Blenny is a small, elongated fish with a tan to brown body and two distinctive dark spots—one behind each eye. The body is streamlined and tapered, with a large mouth adapted for grazing.

Diet and feeding

Feed a varied diet of high-quality herbivorous flake foods, spirulina-based pellets, and meaty foods such as small frozen copepods or brine shrimp. This blenny primarily grazes on algae and detritus in the aquarium but benefits from supplemental feeding 2-3 times daily.

Difficulty and care for the Two Spot Blenny

Easy - Hardy and peaceful. Best suited for beginners.

Common health issues

Marine ich, Fin rot, Swim bladder disorder, Bacterial infections, Parasitic infestations

Origin and habitat

Indo-Pacific region, from the Red Sea to the western Pacific, including areas around Indonesia and the Philippines.

Keeper notes

Hardy and peaceful. Good algae eater. Reef safe. Great for nano tanks.

Log Two Spot Blenny in your reef tank

Reef Trak gives you the full record on every species in your tank: acquisition date, source, photos, parameters at time of stocking, and links to maintenance and feeding events. Track Two Spot Blenny alongside everything else in your reef.