Help: Randall's Goby breathing fast

[ganels7]

I got this Randall's goby 2 days ago. He seemed fine until about 2 hours ago, when I noticed him breathing quite hard. I moved him to a hospital tank with an air stone. It's almost midnight so I can't run and grab any medication but maybe a freshwater dip would help? Any tips appreciated.

 

[Mr. Mojo Rising]

#fishmedics for more help. Freshwater dip can easily stress and/or kill a fish, personally its not something I would do unless someone very experienced guided me

 

[Randy Holmes-Farley Verified Community Expert]

Apparently the fish has died.