Lesion?

[alicia24]

Hi,
Sorry the picture/video quality is not great( they're in a bucket) I was transferring my fish from qt about to go into dt when I noticed my puffer has like a lesion near his tail. I'm assuming I nead to put all the fish back into qt? What else do I need to treat with? I already did copper, prazi, and kanaplex. Puffer seemed healthy other than swimming a little weird sometimes. Idk if this is a lesion from trauma from catching it.

 

[vetteguy53081]

Hi,
Sorry the picture/video quality is not great( they're in a bucket) I was transferring my fish from qt about to go into dt when I noticed my puffer has like a lesion near his tail. I'm assuming I nead to put all the fish back into qt? What else do I need to treat with? I already did copper, prazi, and kanaplex. Puffer seemed healthy other than swimming a little weird sometimes. Idk if this is a lesion from trauma from catching it.

This looks to be a physical injury and to prevent infection, I recommend immediate treatment using seachem Neoplex or kanaplex and assure it’s healing and not getting worse

 

[Jay Hemdal Verified Community Expert]

Hi,
Sorry the picture/video quality is not great( they're in a bucket) I was transferring my fish from qt about to go into dt when I noticed my puffer has like a lesion near his tail. I'm assuming I nead to put all the fish back into qt? What else do I need to treat with? I already did copper, prazi, and kanaplex. Puffer seemed healthy other than swimming a little weird sometimes. Idk if this is a lesion from trauma from catching it.

Are you sure it didn’t have this lesion before you captured it to move it? It doesn’t look like a fresh injury to me, but maybe?

It looks like it might be infected. I’d move it back to the QT and dose with kanamycin again, especially if your previous kanamycin treatment wasn’t for the full six days. You could also try neomycin, but be sure your WT doesn’t have copper in it, because it can react with copper.

 

[xzt]

Didn’t any other fish attack it? How come this looks a bit like it got bitten by a fish?

 

[Aqua Ultraviolet]

Hi,
Sorry the picture/video quality is not great( they're in a bucket) I was transferring my fish from qt about to go into dt when I noticed my puffer has like a lesion near his tail. I'm assuming I nead to put all the fish back into qt? What else do I need to treat with? I already did copper, prazi, and kanaplex. Puffer seemed healthy other than swimming a little weird sometimes. Idk if this is a lesion from trauma from catching it.

That looks more like a physical injury than something I’d try to diagnose from the photo alone. I’d keep the puffer in QT and watch closely for worsening or signs of infection.

 

[winxp_man]

Infection and does not matter how it happened in the end. Fish has an open wound.

As Vette and Jay stated Neoplex, or Kanaplex. And one side note, make sure to keep the water clean. Bacteria can cause trouble on open wounds.

Oh and yes keep it in the QT tank.