
Meiacanthus kamoharai
Family: Blenniidae ยท Blennies
Also known as: Kamohara's Fang Blenny, Japanese Fang Blenny
The Kamohara Blenny is a striking fang blenny native to the temperate and subtropical waters of southern Japan, where it inhabits rocky reef environments and coral communities. Its body displays a beautiful uniform blue to blue-gray coloration that can appear almost electric under proper aquarium lighting. The streamlined, elongated body terminates in a slightly forked tail, and the face features the characteristic intelligent expression of the Meiacanthus genus, with prominent eyes and the enlarged lower canine teeth that define fang blennies.
Like its relatives in the Meiacanthus genus, the Kamohara Blenny possesses venomous fangs that serve as an effective deterrent against predators. When threatened or swallowed by a predator, the blenny bites the inside of the predator's mouth, delivering a venom that contains opioid-like compounds causing the predator to immediately release the fish. This defense grants the Kamohara Blenny remarkable confidence, and it swims boldly in the open water column, perching only occasionally on rockwork. Its striking blue coloration, combined with this active swimming behavior, makes it one of the most visually impactful small fish available.
The Kamohara Blenny is hardy and easy to care for, making it suitable for aquarists of all experience levels. It is completely reef-safe and peaceful toward all but similarly shaped blennies. Its Japanese origin means it can tolerate slightly cooler water temperatures than most tropical reef fish, though it thrives in standard tropical aquarium conditions. Captive-bred specimens are occasionally available and tend to adapt even more quickly to aquarium life.
The Kamohara Blenny is an omnivore that feeds on zooplankton, small invertebrates, and algae in the wild. In captivity, it readily accepts frozen mysis shrimp, enriched brine shrimp, marine pellets, flakes, and Spirulina-based preparations. Its bold swimming and feeding behavior makes it very easy to feed. Offer a varied diet including both meaty and vegetable-based components two to three times daily for best health and coloration.
The Kamohara Blenny is peaceful toward virtually all tankmates. Its venomous defense means even semi-aggressive species quickly learn to leave it alone. Compatible with clownfish, tangs, wrasses, gobies, and most community reef fish. May squabble with other fang blennies or similarly shaped blennies. Completely reef-safe with all corals and invertebrates.
Check CompatibilityKamohara Blennies are egg-layers that deposit adhesive eggs in small crevices or shells. The male guards and aerates the eggs until hatching. Males tend to be slightly larger with more developed dorsal fin filaments. Larvae are pelagic and require rotifers and copepod nauplii as first foods. Captive breeding has been achieved in Japan but remains uncommon elsewhere.