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Old 10-02-2013, 03:37 AM   #1
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Forktail/Fanged Blenny - Meiacanthus atrodorsalis

Quick Stats: Forktail Blenny

-Family: Blenniidae
-Range: Indo-Pacific
-Size: Up to 5 inches
-Diet: Omnivore
-Tank Set-up: Marine: Coral or rock, plants (excellent reef fish!)
-Reef Compatible: Yes
-Tank Conditions: 72-78ļF; sg 1.020-1.025; pH 8.1-8.4
-Minimum Tank Capacity: 30 gallon
-Lighting: Medium
-Temperament: Semi-aggressive
-Venomous: Yes
-Swimming Level: Bottom
-Care Level: Moderate
-Reproduction: Egg Layer

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, mysid and vitamin-enriched brine shrimp, as well as frozen herbivore preparations.

Here's my forktail blenny. Awesone fish and its never tried to bite me.

A nice pic of one found online.

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Old 10-02-2013, 03:42 AM   #2
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Thats a nice looking fish i might have to get one thanks for this thread
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Old 10-02-2013, 07:58 AM   #3
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I love this guy, full of character. Only set back is wont eat flake, yet. All in all wonderful addition to any reef tank.
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Old 10-02-2013, 08:16 AM   #4
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He is cool and pretty cheap as far a a marine fish goes. I just noticed there wasnt a thread on these guys and should be. I never feed with flake food, just frozen unless its cyclopeeze and he loves it. Also there is alot of fish that mimic this one for protection such as the popular bicolor blenny and the $120+ red sea mimic blenny.
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Old 10-02-2013, 09:24 AM   #5
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Here's a very good article on the Meiacanthus/fang blennys.

http://www.advancedaquarist.com/2012/5/fish
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Old 10-04-2013, 10:45 PM   #6
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He's so handsome! Definitely love blennies. Our bicolor is the family favorite.

Can't mix or have 2 blennies, right?
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Old 10-05-2013, 09:49 AM   #7
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Quote:
Originally Posted by Callen View Post
He's so handsome! Definitely love blennies. Our bicolor is the family favorite.

Can't mix or have 2 blennies, right?
Ive heard of it. Guess it depends on the tank size and what kind of blenny. What size tank do you have?
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Old 10-06-2013, 12:55 AM   #8
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I have a 75 gallon tank with about 150 lbs live rock. Lots of hidey holes!
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Old 10-06-2013, 10:26 AM   #9
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Quote:
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I have a 75 gallon tank with about 150 lbs live rock. Lots of hidey holes!
It could work but im no expert. It would def. straighten out your bicolor blenny if he messed with him. Personally I wouldnt try it. There are plenty of other fish in the sea. Heres a paragraph from LiveAquaria:

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.
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Old 04-21-2014, 09:49 PM   #10
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I have a bicolor and lawnmower blenny in a 150, only time there is an issue is if someone goes near the bicolor's little cave, including me lol. Other than that, they are fine. I think it really depends on the fish themselves, I've had more than one work fine, and fail both. Don't think it should be tried in smaller tanks though.

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