Terra cotta pots

[Greenlove]

Is it ok to use terracotta pots in vivarium?

[Jace]

I tried a couple of small ones and placed them in with several of my frog setups. However, I noticed after a while that they discoloured, and though I didn't have mould on the moss, mould was growing on the terra cotta pot, so I removed them all and now they are collecting dust. I have heard of people using them without issues, but maybe in a dry setup??