Saltwater Aquarium Fish for Marine Aquariums: Forktail Blenny
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Forktail Blenny
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Forktail Blenny (Meiacanthus atrodorsalis)
Additional locales and sizes may be available!

Quick Stats

Care Level Moderate
Temperament Semi-aggressive
Color Form Blue, Yellow
Diet Omnivore
Reef Compatible Yes
Water Conditions 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.020-1.025
Max. Size 5"
Venomous Yes
Origin Fiji, Indonesia, New Caledonia, Philippines
Family Blenniidae
Minimum Tank Size 30 gallons
Compatibility View Chart
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Overview

The Forktail Blenny, also known as the Lyretail Fang Blenny or Yellowtail Fang Blenny, has a caudal fin that resembles a fork, with two long exterior spines and five much shorter middle spines. The body is a pale blue that runs like watercolor into a bluish-yellow at the tail. Males are generally larger than females and experience a succession of color changes when breeding.

The Forktail Blenny needs a minimum tank of 30 gallons with live rock for hunting and grazing. It is best to keep only one per tank unless a breeding pair is maintained. The Forktail Blenny is considered venomous and should be kept only with caution around children having tank access since it may perceive fingers as an attacker and deliver a similarly painful bite.

The diet should consist of finely chopped crustacean flesh, mysis and vitamin-enriched brine shrimp, as well as frozen herbivore preparations.

Approximate Purchase Size: 1-1/4" to 3"

Customer Testimonials

Emily P. Corona , CA
I have one of these beauties in my 12 gallon reef aquarium. It adds so much vibrance and color! It gets along very well with my other fish. This blenny is also a very good eater, trying to stuff itself all the time with brine shrimp and bloodworms! This fish is very hardy, and I recommend it to anyone with a small to medium size reef aquarium.
1-1 of 1 testimonials

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