Zebra Danio With White Spot On Lower Lip

Discussion in 'Freshwater Fish Disease' started by bgclarke, Apr 21, 2017.

  1. bgclarkeWell Known MemberMember

    While doing a water change today, I noticed that one of our zebra danios has a white spot on his lower lip.
    I think I spotted this before, but thought it went away.

    I've observed that he can open his mouth for food and he otherwise seems fine.


    Any idea what he has and how I can treat it?

    Tank has been cycled for several months.

    Tank has the following stock:
    6 zebra danio
    5 harlequin rasboras
    2 amano shrimp
    2 nerite snails
    2 panda cories

    I'm aware there are stocking issues (there's a new 29 gallon tank in the basement).

    I have the following meds on hand:
    Tetra Fungus Guard
  2. Wet PetsNew MemberMember

    Make sure they are not bullied.
  3. bgclarkeWell Known MemberMember

    Not bullied as far as I can tell, just the usual danio sprints around the tank.
  4. HerkimurWell Known MemberMember

    I would do a methylene blue dip asap.
    Mouth rot is painful and he will eventually stop eating.
  5. bgclarkeWell Known MemberMember

    I don't have methylene blue and I can't seem to find it locally.

    My LFS doesn't carry it and I've never seen it at Petsmart or Pet Valu.
    Would have to order it online and get it mid/late of next week.
  6. HerkimurWell Known MemberMember

    You can use Artemiss by Microbe-Lift until you get meds through the mail.
    Artemiss is plant, invert and Biofilter safe. Available at PetCo. Make sure to buy the Freshwater version.

    Edit: forgot to mention: the reason people only dip with Methylene Blue is because it kills your Biofilter.
    It's an extremely potent antibacterial substance and should only be used for 10 seconds.
    It would also kill your plants.
  7. bgclarkeWell Known MemberMember

    Ive never seen that product here.
    I'm in Canada and not all aquarium products are available here, some have been banned for import/sale such as TSS.
  8. HerkimurWell Known MemberMember

    Can you get Seachem Products?
  9. bgclarkeWell Known MemberMember

    Yes, Seachem products are plentiful.
  10. HerkimurWell Known MemberMember

    If you can get ParaGuard that would be good.
    It's mild, can be used on scaleless fish and shrimp but NOT snails.
    It treats mild infections of parasitic, fungal and bacterial in nature.
    It won't kill your plants or biofilter either (I've used it plenty) but it will stain some decor or rocks.
  11. bgclarkeWell Known MemberMember

    I picked up a bottle of Paraguard a little while ago.
    I think I'll try the bath option in our empty 5.5 gallon tank first.
  12. bgclarkeWell Known MemberMember

    First bath completed.

    6 ml Paraguard in 2 gallons of Prime treated water for an hour.

    The white spot on the chin seems to have split in half and appears to be on both sides of the mouth now.
  13. Dori.anneValued MemberMember

    Hopefully that means the dip helped. Does the white spot look a little fuzzy/cottony like columnaris? My understanding is that a preferred treatment for columnaris is a combination of Kanaplex and Nitrofurazone (which is in Tetra Fungus Guard) - both of which you have.
    Good luck!
  14. bgclarkeWell Known MemberMember

    That was one of the first things I thought about.
    I honestly can't tell if it's fuzzy or not.
    He's zooming around so much it's hard to get a photo of him to get a good look at it.
    I'm going try and get another photo or perhaps take a video to get a better look.
  15. bgclarkeWell Known MemberMember

    Tried to get some photos of him, but didn't have too much luck.
    Need a pause button for these guys.

    First image is side profile as he was turning away.
    Can't tell if that's fuzz or damaged skin.


    I read through @CindiL columnaris treatment post and I don't think he's acting off.
    He has no other white spots on him other than his mouth.

    Really not sure what to do with this guy.

    Another Paraguard bath or go straight to Kanaplex and/or Tetra Fungus Guard treatment in the 5 gallon tank?
  16. CindiLFishlore LegendMember

    Hi, sorry for the very late reply. Is he the only one with it? In the mild strains they won't act very off. Did you end up doing another paraguard bath? or start treatment with something else? How does it look today?
  17. Wet PetsNew MemberMember

    You can try the Fungus guard,

    If the white spot look like a lump , and does not go away it could be a tumor , this happens,
    Last edited by a moderator: May 12, 2017
  18. bgclarkeWell Known MemberMember

    He's the only one with it.
    I've gotten a good look at the other 5 danio, the remaining harlequin rasboras, and the panda cories, and they all look and act normal.

    I just finished giving another 1 hour Paraguard bath and have put him back in the main tank.

    It looks better than when I first noticed it.
    In the main tank it looks white, but when he's in the 5 gallon it looks black.
    I don't have a light on in the 5 gallon when treating him, so that might be it.
    Last edited: Apr 24, 2017
  19. CindiLFishlore LegendMember

    It is sounding like something different at this point.
  20. bgclarkeWell Known MemberMember

    Here's a side profile photo I just took.