Help!!! Sick Rasbora

Discussion in 'Freshwater Beginners' started by Eternal Irony, Apr 25, 2017.

  1. Eternal IronyNew MemberMember

    I've just noticed that one of my harlequins has a large red lump on his side. He is swimming and eating but his fins are clamped, he's not schooling like he usually does and keeps taking himself off to the corner.

    I know my rasbora can be a bit nippy with each other but this looks like a lump under his scales with no visible wound. I've attached a few photos (sorry about the quality little bugger got a spurt of energy when I got the camera out)


    Has anyone got any ideas what this is please?

    Parameters (API Master Test Kit):
    PH - 6.6
    Ammonia - 0
    Nitrite - 0
    Nitrate - 0
  2. meyowmeowValued MemberMember

    I'm so sorry your fish is having a problem! I am thinking it could either be fish TB, a tumor, or possible parasites. Do you know how long your fish has had the bump? If it's been there awhile, does it get larger or smaller or change shape in any way?
  3. BReefer97Well Known MemberMember

    It honestly looks like a tumor. I can't think of a parasite that would cause a red bump like that under the skin. But if his fins are clamped, he's obviously stressed out from it. I would put him in a QT tank and do probably 50% water changes and see if that helps. I've read through some older, similar threads to this and that's all you really can do - at least a few people have had success with putting the fish in a QT tank and watching the tumor slowly go done. Sometimes it'll reappear in days, but keeping up with water changes is the only thing I've found to help.
  4. DoubleDutchFishlore LegendMember

    Could it be an aeromonas bacteria infection?
  5. AllieStenFishlore VIPMember

  6. Eternal IronyNew MemberMember

    Tank was definitely cycled, I madebsure if that when I set it up and I've had it running for almost 3 years.

    I've been away for a couple of weeks so OH has been feeding and doing small water changes. I did a big 50% change 3 days ago when I got home not sure if that could have affected the readings.

    If it is a tumor it came up really quickly as he only changed overnight and it hasn't got any bigger since. Poor little guy is loosing colour now too but still comes out for food

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice