LifeBear
Fish Crazy

Is this HITH?
I was all set to freak out when I noticed how Hagrid's nostrils looked a few minutes ago, but while getting the picture organized onto my computer, I noticed that he had similar looking nostrils a few months ago. I don't know how I missed it.
For the record...the camera flash makes the...erosion...areas look whiter than they are in real life.
He lives in a 55g (for now, bigger tank coming tomorrow, coincidentally)
He just got a 50% (maybe more) water change a couple of weeks ago. And will obviously be getting even more tomorrow when my new 125g arrives.
What sort of treatment would you suggest? OTHER THAN a water change
Could it be anything other than HITH? Would there be different treatments or is it all going to be the same. I am used to sick bettas, I have never had any trouble with my oscar. Help!
Edit: That makes it sound like my bettas are sick all the time. They aren't. I just have more experience with sick bettas, and avoiding illness and recovery...oh, you know what I mean.