In my opinion, from the photos you posted on your other thread, it looks to be columnaris but I can't really see the spots to tell if it is ich, columnaris, or another unknown disease. Are they circle shaped/spots like ich but larger or do they look like spots on the inside skin and out? Did the barbs start by flashing and this showed up? How long did you quarantine each fish you added (the rams, cherry barbs, etc.)? Some disease can show up after a few weeks of no signs/sickness. You should separate the sick ones so they don't have a higher chance of affecting the others if they are not infected yet.