Hydrocynus Family (African Tiger Fish)

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    WILLS
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    Hydrocynus Family (African Tiger Fish)

    Post by WILLS on Sun 11 Jul 2010, 6:09 pm

    African Tigerfish
    Hydrocynus goliath (Boulenger, 1898)

    Temperament: Aggressive
    Sociability: Groups
    Min. Tank: 900 gallons
    Availability: Rare
    Area: Middle

    Largest of the Characins, the African Tigerfish is big, powerful, and
    well armed, thus making it among the worlds most sought after gamefish.
    It lives in the open rivers and streams of central and northern Africa.
    The impression one gets from viewing these fish, is one of awe, terror,
    and mystery, not unlike the feeling of watching a Great White Shark.

    This fish is basically an enlarged version of a Tetra. All of the fins
    are pointed, there is an adipose fin, the scales are large for a
    Characin, and the mouth and dentention are extremely well developed. The
    teeth are designed and look like knives. Each tooth fits in a socket
    between each tooth, allowing the teeth to mesh like cutting sheers. All
    teeth are seen all the time even when the mouth is completely shut. The
    entire body is sleek and designed for speed.

    Horizontal unbroken black bands run along the entire body, hence the
    name Tigerfish. The rest of the body is usually a silver-white-grey,
    however there is usually a metallic orange or yellow sheen. Many
    specimens have various blue to green pigmented scales.

    One of the most fearsome predators freshwater has ever known, the
    Tigerfish has a viscious reputation. These fish hunt in large packs,
    just as their South American counterparts, the Piranhas do. Prey consist
    primarily of other fish, but just about anything alive can fall prey to
    the Tigerfish. Like the Piranha, prey is eaten away bite by bite.
    Because they have razor sharp knife-like teeth, and extremely strong jaw
    muscles, they are among the few fish that can turn the tables on prey
    the same size or larger than themselves. There are unverified reports of
    attacks on humans.

    This fish is probably entirely unsuitable for captivity because they are
    enormous, and require a huge body of water to support them. Nothing
    under 900 gallons is suitable. For tankmates, the only fish that won't
    be torn to pieces are other individuals of the same size. Aquarium
    furnishings would only be a hinderence.

    Live foods are a must, particularly live fish. Once the tigerfish gets
    used to captivity it might except lean meat like beef heart. It is not
    advisable to stick your bare hands or other appendage into the tank
    containing this potentially dangerous or even deadly fish.

    Keep the water extremely well-aerated and moving, with a neutral to
    alkaline pH at a temperature between 75 to 84 degrees F.

    Breeding is rare in captivity. Only H. vittatus has been known to spawn
    in the aquarium. It is a smaller species, reaching three feet in length.

    The importation of these fish must be considered rare and exceptional.
    If you somehow get a hold of one, you will have something special, a
    perfect machine devised by nature for one purpose.

    Family: Alestiidae
    Type: Characins
    Distribution: Rivers and lakes of Africa
    Max Size: 72"
    pH: Slightly Alkaline
    Temperature: 76-84° F.
    Diet: Carnivorous

    The above was copied from Aquaria Central.

    There seems to be at least four species of ATF.

    Hydrocynus Goliath........over 5'
    Hydrocynus Vittatus.......over 3'
    Hydrocynus Tanzaniae...3'
    Hydrocynus Brevis.........the smallest, not exceeding 30"

    H. Vittatus was formerly called H. Forskahlii, same fish.


    PERSONAL EXPERIENCE

    These are truely specialized predators. They are extremely fast swimmers
    that need lots of space to safely maneuver. I know the above states
    min. 900g, but I don't believe that as being the rule. A 360g tank is
    sufficient to keep one Vittatus or other striped variety. For Goliath, I
    agree, 900g being min. Keep lids closed and weighted down as these are
    accomplished jumpers.

    Growth rate is slow (6-9" per year). So if you have a 180g tank, and
    were to purchase a 3" specimen, you could get away with it for about a
    year, maybe a little bit more. Because these are normally very nervous
    and flighty fish in their juvenile to adolecence, at 1' they may start
    to bash themselves into the walls of a 2' wide tank. It helps if you
    black out the sides and back of the tank giving only one window to be
    able to view them. This gives the sense of increased security and
    therefore lessens spazzing. As they get larger and mature, they seem to
    settle down quite a bit. Avoid sharp rocks as they can easily injure
    themselves on them as they speed by. If you are planning to keep more
    than one, adding some obstructions such as driftwood may help against
    aggression by breaking up territory and providing cover. Plastic plants
    also work well. Providing clean, well areated water is a essential.
    Current is recommended especially as they get larger and require higher
    levels of oxygen.

    As for temperament, they are aggressive predators, not all out brawlers.
    They are very quarrelsome amongst each other or anything that resembles
    them. As juveniles they don't seem to defend themselves very well
    against the true fighters such as aggressive cichlids, Jardinis, and
    even African Pike, etc... and often get bullied or killed by such. That
    timidness disappears as they get larger. It seems as though they know
    that they possess some real weapons. There have been many incidents
    where good sized ATF has severely lacerated or amputated the rear
    portion of a tankmate out of a territorial dispute or predation, so
    choose the tankmates carefully. Sometimes it may be best to wait until
    the ATF is at least 6-8" before introducing tankmates as many of the
    fish that would be compatible at a later time grow much quicker and
    would bully or make a meal of them. Good tankmates include the bichirs
    (bottom level preds which are also good for cleaning up scraps), larger
    Synodontis cats (Decorus, Angelicus, Granulosus), large barbs (good
    dithers ), med to large semi aggressive cichlids (Frontosas, larger
    Haps Oscars, etc...), Red Hook Silver Dollars, etc...

    For food, aside from live fish, they will accept most meaty items
    (shrimp, smelt, catfish filets, beefheart, etc...).

    In conclusion, they are awesome, but not for everyone with a large tank.
    To be truely successful with ATFs, the tank has to be tailored to them.
    Its one thing to have a large ATF, its quite another to have a
    flawless, mint looking large one.

    H. Vittatus



    H. Goliath





    Last edited by WILLS on Sun 11 Jul 2010, 6:28 pm; edited 1 time in total

    WILLS
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    Re: Hydrocynus Family (African Tiger Fish)

    Post by WILLS on Sun 11 Jul 2010, 6:27 pm

    Hi all,
    Kenalkan Goliath & Vitatus ane yang masih cupu
    Silahkan
    di komen sepuasnya




    poseidon
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    Re: Hydrocynus Family (African Tiger Fish)

    Post by poseidon on Sun 11 Jul 2010, 9:04 pm

    Goliathnya kalo gede kayak gambar avatar gw

    WILLS
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    Re: Hydrocynus Family (African Tiger Fish)

    Post by WILLS on Sun 11 Jul 2010, 9:08 pm

    poseidon wrote:Goliathnya kalo gede kayak gambar avatar gw

    Hehe, iya bro. miara juga ya bro? diposting dong

    poseidon
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    Re: Hydrocynus Family (African Tiger Fish)

    Post by poseidon on Mon 12 Jul 2010, 7:41 am

    WILLS wrote:

    Hehe, iya bro. miara juga ya bro? diposting dong

    nda pliara goliath bro,pliara yg lain

    aropunk
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    Re: Hydrocynus Family (African Tiger Fish)

    Post by aropunk on Mon 12 Jul 2010, 11:45 am

    weleh ...ikan ginong....klo sgede avatar bro poseidon, aye ciut

    WILLS
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    Re: Hydrocynus Family (African Tiger Fish)

    Post by WILLS on Mon 12 Jul 2010, 12:00 pm

    aropunk wrote:weleh ...ikan ginong....klo sgede avatar bro poseidon, aye ciut


    erwinaja
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    Re: Hydrocynus Family (African Tiger Fish)

    Post by erwinaja on Mon 12 Jul 2010, 5:19 pm

    giginya serem amat..... mau gosok kaca akuarium dalem juga males.... ntar di cipok lagi ama tuh ikan....

    aropunk
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    Re: Hydrocynus Family (African Tiger Fish)

    Post by aropunk on Tue 13 Jul 2010, 2:20 pm

    erwinaja wrote:giginya serem amat..... mau gosok kaca akuarium dalem juga males.... ntar di cipok lagi ama tuh ikan....
    situ dagingnya tebel...moso takyuttt

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    Re: Hydrocynus Family (African Tiger Fish)

    Post by erwinaja on Tue 13 Jul 2010, 10:21 pm

    aropunk wrote:
    situ dagingnya tebel...moso takyuttt

    jah....
    dia bawa2 daging....

    tetep aja males kalo harus di perban...

    aropunk
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    Re: Hydrocynus Family (African Tiger Fish)

    Post by aropunk on Tue 13 Jul 2010, 11:01 pm

    erwinaja wrote:

    jah....
    dia bawa2 daging....

    tetep aja males kalo harus di perban...

    xxixixiii

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