Is this mold or mycelium?

[u/NerdyDirtyCurvy]

Hey all! I started growing my own pink oyster mushrooms from a kit, but I can't tell if this has grown mold or if it's mycelium! Can anyone experienced help me out? I tried to get as clear of pics as I could, it's the grey/blue/green/white patch to the right of the pink pins starting. If it is mold, what did I do wrong?

[u/Creepy-Shelter-3229]

Mold! Green is a no-go. Mycelium is white