Harptail Blenny

Greek Name: Meiacanthus mossambicus



The Harptail Blenny is an excellent option for the reef tank. It’s a beautiful deep golden yellow with a green shadow over the eye, which runs under the dorsal fin, which is jet black.
This Harptail Blenny is a fan of an aquarium at least 30 gallons or more with live rock. The species will eat the many crustaceans that live on the live rock. Harptail Blennies are passive fish never bothering their tankmates. This species has the capacity to pierce the inside of the mouth of predators with its venomous fangs while being it is ingested. The predator then spits the tiny fish out of its mouth, with no damage to the Blenny.


Harptail Blennys should be fed a balanced diet consisting of carnivores food, with a range of food items designed for herbivores. The fish should be fed tiny amounts of food, a few times per day.


Approximate Purchase Size: Small: 1″ to 1-3/4″; Medium: 1-3/4″ to 2″; Large: 2″ to 3″


Care Level




Color Form

Black, Green, Yellow



Reef Compatible


Water Conditions

sg 1.020-1.025, 72-78° F, dKH 8-12, pH 8.1-8.4

Max Size






Minimum Tank

30 gallons


General information regarding Harptail Blenny

They are excellent for reef tanks and able to take on most aquarium fish foods. The Blenny Family is commonly confused with the Goby family. The Blennies are distinct by their single dorsal fin, and the tendency to rest on the bottom of their tanks with their bodies curved. The majority of these fish have tiny appendages at the upper part of their head, referred to as “cirri”. Certain Blennies are found in tidal waters in which the waters are cool and shallow. They possess an amazing leaping ability and can be seen jumping from pool to pool. Additionally, Blennies can be found in caves and crevices on coral reefs. They have heads that are blunt and teeth that are combed, which gives them the ability to scrape algae, their main food source off rocks surface.

Additional information


Large, Medium, Small

Subscribe To Our Newsletter

Signup today to receive a coupon code for a one-time use of 10% off all Aquarium Supplies.