Yellow Watchman goby odd growth on mouth

[Klgocke]

So Ive had this guy (Yellow Watchman Goby) for a while ~5 months and I got him online. He looked fine when I got him but about 2 weeks after that I noticed this redness on his lip. Its still there but doesnt seem to be bothering him. He eats normally, and sifts through sand normally. It just looks bad and I can see redness below his eye.

Any clues as to if its a disease or parasite and what to do?

All water params are normal.

 

[Brian5000]

My clownfish got a cut on his lip or something right after I bought him and his lips swelled up pretty bad. Even though it looks strange, he kept eating and after about a month he had healed and was back to normal. My guess is that he will eventually heal himself, or it will get infected and you'll be in trouble.
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Honda CB1000

 

[ChrisRD]

With good water quality, a good diet and low stress I'd have expected it to heal by now. It could be a secondary bacterial infection brought on by a minor injury. If it gets worse you might try setting up a small hospital tank/container and treating with a wide spectrum anitbiotic like Furan-2.

 

[Klgocke]

Tanks for all your help. I have a quarantine set up. He went through that whole process, but he seems so happy and healthy, except for that mouth, alongside his buddy that I didnt want to remove him to the QT.

Ill keep an eye on him and see if it gets any worse.