Was able to get a pretty clear shot. probably about as good as I can get without taking him out for a pic.
Salt at 1 tsp per g. Triple sulfa and prazi will cover infection and any potential gill fluke/parasite (maybe).Hard to see in the photos but are both eyes Turning white? If it is, this could be a stress related reaction to the water. Higher than normal chloramine from your public water system, etc... perhaps use more of the dechlorinater than suggested.
I think the proper step would be to treat it with salt. 1 tbspn per 5 or 10 gal.kno4te help me with this one, lol. Secondly, dose it with some antibacterial meds. Hopefully it will show signs of improvement after a few days.