Thanks my substrate is kept mostly dry and it's a mixture of tarantula soil and vermiculite and when I water I just allow a little over flow once a week this is where the mushroom was growing never had this problem beforeHmmm, your substrate has to be really wet for funghi like toadstools to grow... B. hamorii don't like it wet, most Ts don't actually.
We generally use coco fiber, sometimes call coir, and often mix it with peat moss, vermiculite, top soil (make sure no pesticides) and clean, dry sand.
I'd chuck that substrate, personally, and keep your T according to the species requirements.
Tarantula soil is not a thing. Whatever that concoction is has funghi spores in it and who knows what else.Thanks my substrate is kept mostly dry and it's a mixture of tarantula soil and vermiculite and when I water I just allow a little over flow once a week this is where the mushroom was growing never had this problem before