Hi! I have a 29 gallon tank, freshwater, with 6 albino corys and one female veiltail betta. Current water readings are normal, the tank was set up about a month ago and cycled before fish were added. On Tuesday one of the corys seemed quiet, and I noticed some red spots on her, pictured here how they look today. I started with melafix and pimafix, since it worked for me in the past, and today the spots are now on both sides of her body, but she’s finally more active and eating. Google said these might just be scrapes but I don’t want to take chances- does anyone know what these could be? Thank you so much in advance!