bubble on jaw

mdbaskett

AC Members
Jul 12, 2005
50
0
0
Seattle, WA
bubble on jaw...please help!

I have had these fish for a week now. I have done one 50% water change. This morning when I came in one of my fish had a small bubble on his lower jaw. His "skin" is red underneath and it seems to be attached, although its hard to tell because he is a small rasbora.

I think the temparature went a little too high while I was away (the fish are at work) like 82F. Ph is 7.2, NO3 less than 5ppm. but other than that I have no idea.

Any thoughts? I have attached a drawing my coworker did of the problem.

bubblefish9el.jpg
 
Last edited:
Too weird

The bubble is shrinking.
 
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