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Jack Dempsey 4cm Cichlasoma' octofasciatum

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Jack Dempsey 4cm Cichlasoma' octofasciatum

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The Jack Dempsey (Archocentrus octofasciatus (Regan, 1903), formerly Nandopsis octofasciatum and Cichlasoma octofasciatum) is a cichlid fish that is widely distributed across North and Central America (from Mexico south to Honduras). Its common name refers to its aggressive nature, likened to that of the famous 1920s boxer Jack Dempsey.

The fish is native to Yucatan and Central America, where it is found in slow-moving waters, such as swampy areas with warm, murky water, weedy, mud- and sand-bottomed canals, drainage ditches, and rivers. It is also established as an introduced species in Australia, the USA and Thailand (presumably as an aquarium escapee).

The Jack Dempsey natively lives in a tropical climate and prefers water with a pH of 7-8, a water hardness of 920 dGH, and a temperature range of 2230 ?C. It can reach up to 25 cm in length. It is carnivorous, eating worms, crustaceans, insects and other fish. It can eat platies when it is three inches long.

Jack Dempseys lay their eggs on the substrate (the bottom of the aquarium or pool). Like most cichlids, they show substantial parental care: both parents help incubate the eggs and guard the fry when they hatch. Jack Dempseys are known to be attentive parents, pre-chewing food to feed to their offspring. A lot of times however they will eat their fry when the breeding pair are overly disturbed or something in their environment is wrong.

The coloration changes as the fish matures from a light gray or tan with faint turquoise flecks to a dark purple-gray with very bright, iridescent blue, green, and gold flecks. Their colors change under stress. The dorsal and anal fins of mature males have long, pointed tips. Females lack these exaggerated tips.

Like most cichlids it is territorial, especially against its own kind and similar species. The fish was once very popular due to its striking appearance and personable mannerisms. It is a popular aquarium fish.

In 1997 the San Francisco Chronicle reported that a man had died when he put a Jack Dempsey into his mouth as a joke: the fish presumably erected its fin spines to avoid being swallowed, a characteristic cichlid anti-predator response, and became wedged in the man's throat.

In a second season episode of Homicide: Life on the Street, a Jack Dempsey is recovered at the scene of a murder, and is taken home by an unsuspecting Detective John Munch, who intends to give it to his tropical fish-collecting girlfriend as a present. As a surprise, he places the fish in her aquarium, where it proceeds to devour $4,000 worth of her fish before being removed. Munch later refers to the fish as an "assassin" who "uses piranhas as toothpicks."

More than 225 species, with estimates of 300 species, of cichlids are found throughout South America. An estimated 75% of these inhabit the mighty Amazon River Basin. Cichlids are also found in Central America, where they are well-known for their pugnacious behavior and their stunning colors. Most of these cichlid are large, thus requiring large tanks. These fish inhabit most types of water ways throughout Central America including lakes, streams, rivers, even underground water sources.

Their colorful appearance, the many different species available, their behavior and their breeding are just some of the reasons the Cichlids are one of the most popular aquarium fish.

Due to their aggressive behavior, the tank for cichlids should be as large as possible, with its length being more critical than its height; meaning the longer the better.

In the Cichlid tank there must be places of refuge. These can be rock caves, large pieces of driftwood or even inverted flowerpots. Most large species of Cichlids will dig up the substrate material, and occasionally will remove plants from the substrate. The Angelfish, Discus and the dwarf species Apistogramma all prefer a densely planted tank.

The water temperature should be in the range of 24-28 degrees celsius, slightly higher for the Discus. The diet should consist of live and frozen food of all kinds as well a large flake staple food. Large specimens can be feed Earthworms, garden Crickets and kitchen leftovers.
Scientific Name No
Size 4

Customer Reviews

  1. healthy fish delivered Review by martin
    Customer Rating

    Both fish arrived healthy and happy ,quick service and was kept up to date with my order,very impressed with live fish service and range .Thank you heaps guys I will be back for shore.. (Posted on 1/09/2014)

  2. Happy Jack Review by Ray
    Customer Rating

    Received this with a few other fish i ordered, has taken to its tank perfectly and even chasing away a 20cm tiger oscar who is scared of him! (Posted on 23/03/2014)

  3. AAA+ Review by josh
    Customer Rating

    arrived safe, Very healthy fish once got settled in (Posted on 22/02/2014)

  4. AAA+ Review by josh
    Customer Rating

    arrived safe, Very healthy fish once got setled in, Beautiful couloring (Posted on 22/02/2014)

  5. jack Review by Clint
    Customer Rating

    Ordered 2 of these along with 15 other fish received them today all arrived perfect :) (Posted on 7/08/2013)

  6. Jack Dempsey Review by Jayden
    Customer Rating

    My jack arrived happy and full of life ordering more from this website (Posted on 22/06/2013)

  7. Jack Dempsey Review by Fish boy
    Customer Rating

    I got two of them and r doing great in my 4ft tank I will be upgrading to a 8 ft tank soon as this fish can grow to 12inch and gets 14 in the wild. A bit bossy to each other but dont bite the other fish. Thay have great colour and personality. Males have mor colour on the body almost 2 Times that of a female but females have more colour on the face. I love this fish. :)

    (Posted on 19/12/2012)

  8. Great Review by Barry
    Customer Rating

    At first the 2 I orders we're a bit dull in colour but a few weeks after they've gone very dark with very nice dots:) (Posted on 17/05/2012)

  9. Love it Review by John
    Customer Rating

    JD arrived healthy. Took a little while to become accustomed to tank but it's to be expected with the species. Fabulous addition to the tank. Tones of personality! (Posted on 4/12/2011)

  10. Great addition to your aquarium Review by Patricia
    Customer Rating

    Arrived in great shape and has settled in well. Our other fish dwarf him but he has attitude and is holding his own beautifully....his colours are truely lovely and we are enjoying this marvelous little addition to our family. (Posted on 11/10/2011)

  11. Small Review by Cody

    got my jack, it was 3cms not 4, arrived ok. note to buyers the fish wont look like the picture until its a lot larger (Posted on 22/08/2011)

  12. lovely fish Review by ladybeary
    Customer Rating

    i bought two of these fish,took three days to arrive but survived not as aggresive as thought,starting to get abit of colour. (Posted on 12/07/2011)

  13. small jack dempsey Review by Lucas
    Customer Rating

    my jack dempsey arrived in excellent was silver for a few days but started to get darker now it is 5 cm and colouring settled in well in my community tank and has no problems (Posted on 19/11/2010)

  14. perfect Review by fc
    Customer Rating

    thank you perfect info (Posted on 19/10/2010)

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