Puffy mouth? Help please.

[charliethezero]

My betta developed a bubble between his nostril and lip on just one side. It just happened sometime during the night and I have no clue what it is or how to treat him. Any help would be greatly appreciated, thank you.

 

[melypr1985]

Oh gosh... These guys are very difficult to see anything on. I think I see it, but can you draw an arrow pointing to it for us? Is he nosy and sticking his mouth/face in the rocks alot? Could just be a bump from that which will heal and fade fairly quickly. How long has the bump been there?

 

[charliethezero]

You can see his upper lip under the white "bubble". It just happen sometime last night, noticed it when lights came on.

 

[melypr1985]

Well, I'm glad I asked since I was looking at the wrong part! I still stand by my assumption though. Probably tried to nip at something and got caught by a bristleworm or something similar. You didn't say how long it had been that way.