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Thread: Why is my Corydoras always at the water surface?

  1. #1
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    Why is my Corydoras always at the water surface?

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    Hi all corydoras lovers/expert out there!

    I have a question on a particular weird behaviour of my corydoras.
    Wonder if anyone out there have similar behaviour.

    My peppered cories and Sterbais has been always at the surface layer of my water sucking in lots of air thus creating lots of bubbling sounds.

    My other corydoras like Corydoreas Aeneus, Corydoras Concolor, Corydoras Habrosus, Corydoras Pandas, Corydoras Pygmaeus, Corydoras Trilineatus and the rest all stays below.

    Any advice?

  2. #2
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    Do they exhibit any signs of stress i.e. rapid gill movement etc? Cories do occasionally pop to the surface to gulp some air. If they dun exhibit stress and are eating and scanning for food, they should be fine. Maybe they were banished by the rest []
    "In war, whichever side may call itself the victor, there are not winners, but all are losers."
    Neville Chamberlain 1869 - 1940

  3. #3
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    The two Sodalis Corys I have also exhibit same sympton but not the rest, especially at night I can hear it's sucking sounds. I think .. i think hor ... don't bomb me ... their gills probably deteroriated before due to poor condition.

    And even after the condition has been Righted, damage is done.

    Having say that, they normally swim in mid-water among the taller plants unlike other corys at the bottom. And is really pleasing to look at, this couple swimming gently together in mid-water criss-crossing each other. Cannot describe the romantic feeling.

    [:] [:] [:]
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  4. #4
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    Not too sure for the peppered cories.. But my Sterbai seems quite healthy just that it loves to suck air at the surface thus creating lots of bubbling noises.

    Recently, I had a peppered cory that seems to be sick and when I looked closly at its gills, it is a bit redish. Anyway, the two peppered cories has been 1.4 yrs old alreadya.. Dunno if it is due to age.

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    NinjaFly:
    u may want to try salt treatment. The last time one of my cory also has reddish gills and it was always hiding and not eating. After the salt treatment it was back to normal within 2 days.

    Actually cory are quite hardy fishes.

  6. #6
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    hi ek,

    care to share what's your salt treatment like for your cories? like how much salt/ procedure etc?

    thanks a lot in advance!

    cheers

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    Just in case u misunderstood, I was not referring to those salt bath for serious case.

    What i did is simply dissolve about 1 tsp of salt into a cup of warm water and then pour into my planted tank (100L).

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    i've never seen my cories do this other than the first day
    maybe they're just exploring
    but since yours are quite old, it might be that the oxygen level in your water is too low for that particular species

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    Hmm ... Just noticed that my Albino Cories is at the surface blowing bubbles too...

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    albino ah
    that one i think is for fun
    the albino cories are among the hardiest i've seen
    the sole survivor from my first days of fish keeping is an albino aeneus
    keep an eye out for them and see how?

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    Once thing I noticed. Last time when I do feed on my fish, my corydoras will be busy finding the leftover food on the gravel. But recently, most of my corydoras aren't really interested in them. *sign* .. dunno if it's the heavy bioload that cause them to grasp more air....

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    joke time
    is going to give birth hehehe
    hope u all dun bomb me
    <<<Nature(BEDOK AREA)
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    Possible... I have a heavy bio-load too.... and now with both internal filters running, I think the water temp is raised slightly too..... thus no choice, have to aerate more.... But I still see them going to the surface pretty often, even at night....
    Michael Lim
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    I've seen and heard of corys going to the water surface for atmospheric air. But it's the "sucking in lots of air thus creating lots of bubbling sounds" that puzzles me.

    Mine normally just splash some water onto my face and go directly back into the bottom.

    Bubbling sounds? Lack of oxygen in the water?
    P-L-E-C-O-R-Y=M-A-N-I-A!!! YEAH!
    FLORENCE, capital of the region of Tuscany, has a population of around half a million inhabitants, spreads on the banks of the Arno, between the Adriatic and the Tyrrhenian seas, almost in the middle of the Italian peninsula. It is a city which bustles with industry and craft, commerce and culture, art and science.

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    sob ... 1 peppered cory and one c. juli had died. Observed that both had quite red gills then. Not too sure of what had happened ..

    I am pumping in air now and see if the condition gets better.

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    HaiZ..bro dun too sad....!!!
    hope i can help but really dun know what happen....!!!
    i will help to find out throught encyclopedia
    <<<Nature(BEDOK AREA)
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    Here is one of the pictures that I have captured. Here you can see 4 corydoras at the surface.

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    hmm: my albino cory is also one of the cory survivors of tank of doom 1 and 2 episodes..

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    Ninjafly, something is obviously very wrong with the water or gravel. My 50+ cories are 99% of the time at the bottom and only comes up once a while for air.
    ... always look at the bright side of life

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    The Picture doesn't seems right.
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