Froktail Blenny

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.

Minimum Tank Size: 136.383 Litres
Care LevelModerate
Reef Compatible: Yes
Water Conditions72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.020-1.025
Max. Size5"
Colour Form: Blue, Yellow
OriginFiji, Indonesia, Vanuatu

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Easy to Care For
Easy to Feed
Peaceful with Others
Reef Safe
Invertebrate Safe

  1. I bought this angel From LiveAquaria 6 months ago. It is a peaceful fish that eats every kind of food I’ve placed in the tank. Mine has been safe with coral but has nipped at some LPS. Great addition and peaceful fish.

  2. I have had male and female scooters and you have to see their mating dance at night; it is so cute. They go up in the water side by side and when reaching 3/4 to the top they split off and they keep doing this. So cute. Then they find a place to sleep and shake the sand upon their back. Sometimes if you look at the sand bed, you can see their fins looking like eyes beneath the sand. It is hard to explain, but really neat 🙂

  3. 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.

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