Orange Lump on Male Guppy's Tail?

  1. g

    guppy21178 New Member Member

    I'm a beginner with fish tanks. I have a 10 gallon tank with 3 fish (2 guppies and 1 platy). I am thinking of getting new fish (my platy is lonely). Recently my guppy has developed a large lump right on top of the tail bone. The lump is a plastic-like orange lump. It has white stuff growing on top. I am extremely worried about him, and I would appreciate if you helped me identify the cause. He acts and eats like a normal fish. None of my other two fish have had any problem with this.

    My theory is he got injured and the wound was infected with some sort of bacteria or fungus.

    The lump looks like it's sucking on him. I'm very worried!

    Thanks!
     
  2. Coradee

    Coradee Moderator Moderator Member

  3. OP
    OP
    g

    guppy21178 New Member Member

    I resized the picture but it says the link is invalid?
     
  4. Coradee

    Coradee Moderator Moderator Member

    Try clicking on the picture frame at the top of the reply box & uploading one that way, it usually works

    image.jpg
     
  5. OP
    OP
    g

    guppy21178 New Member Member

    rsz_12fullsizerender.jpg Yes it worked! Thank you! Here is the picture!
     
  6. Coradee

    Coradee Moderator Moderator Member

    That looks really nasty & infected, I'd isolate it & treat with an antibiotic, I'm not in the Us so can't give you a brand name, hopefully someone else can.