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Thread: Odd tetra out

  1. #1
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    Odd tetra out

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    When you have tetras in a tank, do you get one or two fishes always not swimming together in the shoal? Always swimming alone

  2. #2
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    me too, used to have neon tetras and runmmy nose schooling in my tank. but paying not much attention to the odd ones, as realised that their appetite still as good and show no sign of illness.
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    Yeah, I think either that particular fish is sick, or it's just anti-social.

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    The so called anti-social tetra usually will die, in my experience...

    That usually is a sign that something is wrong with the fish...

    But sometimes, though, not often, the fish is just really anti-social...
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    i brought some tetras home today and one is a lot smaller and stays in one corner hidden. ive tried to encourage him into the schools but when i check later, hes alone again.
    i hope he doesnt die

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    good news!
    i took the sick tetra out and put him in my goldfish tank where he recovered. this morning he was swimming around and acting fine (not hiding in the plants)
    i removed the bulling danios i had in my larger tank and replaced them for more tetras.
    after they were settled, i took my tetra from the goldfish tank and placed him with his friends and he was immediately swimming with the schools and has been doing fine since then.

    i guess he just got really scared by the danios and needed time to relax.

  7. #7
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    Tetras will isolate the member if they are sick..
    I alway see that in my tetra school...Nt sure how they do it but they sure are gd at differentiating who is sick..

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    I've noticed it too... i have a school of 30+ cardinals and one of them refuses to school with his own kind... he'd rather hang out with the Black Phantoms.
    wierd guy... he isnt sick... he's been in my tank for close to a year now.
    If I were a fish, I'd BREED all Day!

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    i think sometimes the sick tetra gets picked on by his "school" mates. hence it swims alone.

    Btw, swimming erractically is a sign of the dreaded neon tetra diease.

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    neon/cardinal tetras really swim in a school ? well, it doesn't seems so for me. all my cardinal and neon are swimming on its own (doing their own things) most of the time.

    unless i frighten them abit, then, they will swim together.

    something not right with my tank parameters ?

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    I've heard that schooling is kind of a sign of stress...I've got 16 tetras and they don't really school...unless they get a bit shocked

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    well, i guess its anti social and also results in sickness and death...

    the loner tetras that i have always look thinner and not as alert as the rest of the school...

    after transferring the entire school to another tank for more space, it died instead.... sigh

  13. #13
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    Most of the wild schooling fish in sea usually stay in group to protect each other.
    They school together because they will feel safe from predator..
    When you experience most of your tetras do not school together, it means that they know there are no predator in the fish tank.
    Unless you put some bigger fish, or aggresive fish, i doubt they will still be the same

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