Larger Than 'ich' White Spot On Otocinclus

[ilikepotatoes]

Then use a dry cotton bud (q-tip) to gently brush the fungus off as best you can and then paint the iodine onto the fungus area (again with a cotton bud) making sure any excess iodine runs towards the tail and not the head.

I fished out the oto today and put him onto a clean paper towel soaked in tank water. As I attemped to brush the "fungus" off, the cotton on the q-tip seemed to get snagged on it, like it was rubbing on a hard surface, so I touched the white spot and it is not soft like I expected fungus to be. It felt like a hard bump, almost callus-like.

I returned him to the tank since it didn't seem like I was going to be able to just brush it off the surface.

Now I actually have no idea what this is.. It is still the same size and in the same spot; no progression of any kind. Should I just wait it out?

 

[Prime Ordeal]

It might be a cyst or perhaps the beginning of a tumour then.

Do any of the other fish have anything wrong with them?

 

[ilikepotatoes]

No, none of the other fish seem to have anything wrong with them. Everyone is doing fine including this oto, with the exception of the white spot. Is it something I should worry about? It doesnt seem contagious.. Should I quarantine?

 

[Prime Ordeal]

I don't think there's a need to quarantine, at least not yet anyway. My best guess is that it is a cyst formed after injuring himself. All I can suggest is to keep a close eye on it. If it gets bigger or changes in some other way then report back and maybe we can help then.