White stuff on my panda cories mouth?

I have a tank of only juliI and panda cories right now and I found one of my pandas with a super bleached color, not swimming with the others as much, and it had white stuff on its mouth that looked like it was preventing it from eating. I’ve looked it up but I’m not sure exactly what it is, and it’s hard to take a picture but it’s not sticking out and sort of covering the entire mouth and barbels, do you guys know what this could be?

 

A pic and water parameters will help a lot. Ammonia, Nitrite, Nitrate, and PH.

 

Could be columnaris! Quarantining it as soon as possible is probably the best move until you figure out what exactly it is!

 

Tank size?
full stocking?

 

PH: 7.2
Ammonia: 0
Nitrites: 0
Nitrates: around 5

 

Tank size?
full stocking?

29g and currently I have 9 total cories, I was planning to get more but can’t now that I have a possible disease

 

PH: 7.2
Ammonia: 0
Nitrites: 0
Nitrates: around 5

could we have a pic that is more is focus if possible ?

 

could we have a pic that is more is focus if possible ?

Yeah sorry my phone is terrible, is this a little better? Kind of the best my phone is willing to focus rn

 

Unfortunately he died this morning.. I hope I separated him fast enough to prevent others from getting it

 

Watch the tank carefully for any odd behavior or looks. I don't know what it was but it might still be there, waiting to show itself. While the other fish might look find, they might be sick. Hopefully someone else might know what it was - I just know disease control. If you have other tanks you might want to watch them as well, although I have no clue if what he had was actually that bad.