Originally Posted by Hays
You can put him in bottled water and see if that helps before you put him in the fridge. Or maybe put a frozen bottle of water in his tank to cool the temperature down.
To be honest I think he needs to be out of the tank. In fresh water in the fridge. This will give him the best chance of recovery in case its something in the tank causing the problems.
The fridge will de-stress him and help him heal if he has any problems and will also get him out of the possibly bad water.