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African Spiny Eel

Ocellated Spiny Eel

Family: MastacembelidaeAfrican Spiny Eel or Ocellated Spiny EelMastacembelus vanderwaaliPhoto © Animal-World: Courtesy Ken Childs
Latest Reader Comment - See More
Does anyone know where I can buy an ocellated african eel?   brittaney vanzant

   The African Spiny Eel or Ocellated Spiny Eel has a most definite and unusual color pattern!

   As with most members of the spiny eel family, the attractiveness of this eel lies in its unusual color pattern andinteresting behavior. Although not considered to be true eels, the body shapes of all members of the spiny eel family, Mastacembelidae, are definitely eel-like.

   There are many species in the spiny eel family that come from Africa, so fish sold as African Spiny Eels or Ocellated Spiny Eel may not always be Mastacembelus vanderwaali. As long as the spiny eel you purchase is a river dweller, the care and handling should be the same as for this species.

For more Information on keeping freshwater fish see:
Guide to a Happy, Healthy Freshwater Aquarium


Geographic Distribution
Mastacembelus vanderwaali
Data provided by FishBase.org
  • Kingdom: Animalia
  • Phylum: Chordata
  • Class: Actinopterygii
  • Order: Synbranchiformes
  • Family: Mastacembelidae

Habitat: Distribution / Background

   The African Spiny Eel or Ocellated Spiny Eel was described by Skelton in 1976. (Junior synonym: Aethiomastacembelus vanderwaali.) They are found on the Zambezi and Okavango Rivers in Africa.

  • Scientific Name: Mastacembelus vanderwaali
  • Social Grouping: Solitary
  • IUCN Red List: LC - Least Concern

Description

   The body of the African Spiny Eel is elongated with a long snout. Its background coloration is a dark tan to light brown. Along the length of its body in the center is a broken line of dark blotches or short vertical stripes. This pattern extends from the tip of its mouth to the rear of the fish. There is additional spotting below this central marking along with a faint spotted line above.

  • Maximum Size: 12.0 inches (30.48 cm) - This fish usually reaches a more modest 7 inches in the home aquarium.

Fish Keeping Difficulty

  • Aquarium Hardiness: Moderately hardy
  • Aquarist Experience Level: Intermediate

Foods and Feeding

   The African Spiny Eels or Ocellated Spiny Eels are carnivores. Spiny eels prefer a diet of live or fresh frozen foods such as brine shrimp, black worms, earthworms or bloodworms. Some can be trained to eat freeze dried brine shrimp or bloodworms but this is not something that can be counted on. They will also eat small fishes so make sure their tank mates are too large to be able to fit into their mouths.
   If their tank has sand or fine gravel, they may burrow into it. Make sure they have plenty of hiding places so they will feel secure in their new home. It is advisable to keep small specimens up to 6 inches in a tank that is at least 36 inches long and about 35 gallons. Larger specimens will needing an even bigger area, tanks that are 48 inches in length or longer and 55 gallons and up will be necessary. Provide a tight fitting lid as spiny eels are escape artists.

  • Diet Type: Carnivore
  • Flake Food: No
  • Tablet Pellet: No
  • Live foods (fishes, shrimps, worms): Some of Diet
  • Meaty Food: Some of Diet
  • Feeding Frequency: Several feedings per day

Aquarium Care

  • Water Changes: Bi-weekly

Aquarium Setup

  • Minimum Tank Size: 35 gal (132 L)
  • Substrate Type: Any
  • Lighting Needs: Moderate - normal lighting
  • Temperature: 74.0 - 82.0° F (23.3 - 27.8° C)
  • Range ph: 7.4-8.4
  • Hardness Range: - Unknown.
  • Brackish: No
  • Water Movement: Strong
  • Water Region: Bottom

Social Behaviors

  They are very peaceful, although they may eat fish that are small enough to fit into their mouth.

  • Venomous: No
  • Temperament: Peaceful - This fish is not aggressive but will eat tank-mates that are small and slow enough.
  • Compatible with:
    • Same species - conspecifics: Yes
    • Peaceful fish (): Safe
    • Semi-Aggressive: (): Monitor
    • Shrimps, Crabs, Snails: Safe - not aggressive
    • Plants: Safe

Sex: Sexual differences

   Sexual differences are unknown.

Breeding / Reproduction

   Has not been bred in captivity.

  • Ease of Propagation: Unknown - There have been no captive breedings to date.

Availability

   Although not considered rare, collecting expeditions to their home waters are rare. Consequently the African Spiny Eel or Ocellated Spiny Eel are not commonly available.

References

Animal-World References
Freshwater Fish and Plants Tropical Fish ~ Freshwater Fish ~ Aquatic Plants

Author: Ken Childs
Additional Information: Clarice Brough, CFS


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Lastest Comments on African Spiny Eel

brittaney vanzant - 2011-11-22
Does anyone know where I can buy an ocellated african eel?

Reply
anonymous - 2011-03-09
When I was living in san jose in a pet store I saw some very strange fish they were black with a dark brown/dark dusty gray undertone they had no scales they were very smooth and slick-looking they looked almost like seahorses with no bumps that had been uncurled and stretched except they looked slimy like eels they had a long fin running down their back and seahorse snouts they were swimming through the pipes between the tanks but one of them stopped, lifted its head out of the water, and looked at me. I was a little ways behind it so it literally lifted its head and some of its neck out of the water, twisted its neck like a human would, and looked at me and its eyes looked way too intelligent to be a fish's eyes and they didn't seem to care if the water was warm or cold because they went between a tropical tank and a goldfish tank if someone knows what these are please leave an answering comment.

Reply
suzanne campbell - 2010-10-25
I recently acquired a fish tank from my brother and have had it up and running for 3 weeks now. When I added the fish a couple weeks ago I noticed some fish on a daily basis were missing fins and had pieces taken out of their fins. Some of the smaller fish, like the neons and guppies and platties would disappear and I'd find them a few days later with pieces taken out of them. 2 or 3 months before my brother gave me the tank he had some kind of african eel and it disappeared from the tank. He searched for it, removed all the plants and hiding places and searched the gravel and couldn't find it.. it all became a bit of a mystery. Where had it gone? Had it escaped? This morning when I turned on the light in the tank, the eel was swimming around happily! Where could it have been the past 2 or 3 months? Was it hibernating? Was it just hiding and then coming out at night? Could it be the one who was nibbling the fish? I don't understand how I've never spotted it before. It made me laugh to think it's been hiding somewhere all this time!

Reply
Forest - 2010-03-08
i was wondering if a spiny eel would eat smaller fish like Guppies or tetras. if you have an answer comment please

Click For Replies (1)
  • stephen lindsay - 2010-08-12
    Hello,
    A small spiny eel would eat baby fish but unless bigger than half a foot it is unlikely that decent sized guppies or tetras would be gorged.
    Thank-you.
Reply
jessie - 2010-04-08
I think eels are so cute! I think people should like them more. It's not like they are going to bite you or something.... you should look them up and then decide if you like them or not, but if don't still well then can't change your mind. :)

Reply
Oytun ERTAN - 2006-09-12
I have had two spiny eels for about 2 years now. They used to get along well but in time one grew much bigger and started chasing the other. Nothing serius happened but constantly chases the smaller one. But interestingly not when eating...They both feed head to head. One other problem is that they have not been eating something other than bloodworms(live or frozen). And time to time i see them trying to hunt down some little tetras which they live together with. But generally they are quite and peaceful. One of the fishes i can recommend.

Reply

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