Strange neon tetra

Hi!
One of my neons seems to not be doing so well. It is pale, slow, has some flecks on it, and has an enlarged stomach.I’m not sure what it is.
I’ll post a picture

Pale to yellow discoloration in neons often means Neon Tetra Disease. I believe that there is no known cure and affected fish most often die.

It could be a muscle wasting disease or a bacterial infection, or poor water quality. I need a clear picture to be more definitive.

Check your water quality for ammonia, nitrite, nitrate and pH.

Do a 75% water change and gravel clean the substrate. Make sure any new water is free of chlorine/ chloramine before it's added to the tank.

The following link has some info on what to do if your fish gets sick. It's long and boring but worth knowing. I recommend printing it out and reading it in bed to help fall asleep.
http://www.fishforums.net/threads/what-to-do-if-your-fish-gets-sick.450268/