What is going on with this

[DanB]

Mold in the soil or beneficial fungi?

Thanks for the tag Ms Bunny, hi @downbythepylons welcome to the neighborhood it looks to me like a fungi called mycelium and it’s one of the good guys it’s a sign of healthy living soil I’ve noticed my fresh ff happy frog has this grow on it in the beginning when I’m cooking my soil and I have the light off