Should I be worried?

[gaveau yohann]

I am sharing some pics of my red foots, I am a bit worried because of those white "things" on their plastrons? Is that normal erosion? Is it because of the too much humidity, lack of calcium ??
https://ibb.co/nj0RZQ
https://ibb.co/bSZLuQ

 

[Reptilian Feline]

I'm not sure what it is, but I would be worried too.

 

[wellington]

I'm thinking it could be a fungus. Are you keeping them on too wet of substrate?
They need a high humidity but the top layer of substrate needs to be dry as they are prone to shell rot.
It's possible it could be shell rub from walking rubbing it on hard surfaces.
Rub in some athletes cream on the areas, once a day if it starts to clear up then it is a fungus. If in about a week or less if it doesn't change at all then it's probably rubbing.

 

[crimson_lotus]

I agree with Wellington - I would treat for shell rot and see how that goes.

 

[gaveau yohann]

I'm thinking it could be a fungus. Are you keeping them on too wet of substrate?
They need a high humidity but the top layer of substrate needs to be dry as they are prone to shell rot.
It's possible it could be shell rub from walking rubbing it on hard surfaces.
Rub in some athletes cream on the areas, once a day if it starts to clear up then it is a fungus. If in about a week or less if it doesn't change at all then it's probably rubbing.

well their substrate are grasses, as they are outside. We are in the wet season now so it is raining a lot, shell rot ?? you might be right. I am going to treat them accordingly.