OK wi
OK will just do big water change, clean gravel add conditioners to water etc. Then turn temp up. Can't you see the breathing on the video that's only video I have from this morning.. I'll take another one when home at 6pm.I can't tell anything from that video. If you turn your phone on its side so it's horizontal instead of vertical, the video should fill the entire screen and make it easier to see the fish.
Do the big water change now and then raise the temperature to 30C.
If you use heat treatment (30C) for whitespot, you don't need to use any chemicals. So just water change, raise temperature and increase aeration.
Do not add whitespot treatment/ medication.