u/Imaginary-Donut-6862

I’ve had this longfin panda cory for about a week now and just discover her underside looks like this, it seems open. I haven’t seen this on the others What could this be?
About 3 month old Planted 10 gallon with sponge filter 78 degrees. with shrimp and snails and currently in a group of 4 I plan to add 2 more. Ammonia 0 Nitrate 5 nitrite 0 ph 7.8 water changes every week

I had 3 long fin panda cory’s shipped from out of state and they seem to be doing well besides all 3 have these 2 skin pieces hanging off. It is very weird to me that they all have this in the exact same spot and it’s only 2 spots. Is this a disease or just from shipping maybe? I have kanaplex and api fin and body cure on hand if needed.
They are in a planted 10 gallon with a panda cory I previously had with shrimp and nerite snails. Temp is 76 ammonia 0 ph 7.8 nitrite 0 nitrate 5