KNF gray fungus in IMO3, beneficial or not beneficial?

[crisduar]

Hello, I wanted to ask for help since I made my first attempt to do IMO3 with IMO1 from a natural area near my home.

I have done the realization and at first the imo3 produced a white mycelium then began to turn gray.
I have microscope photos to focus on but I don't know which I would appreciate your help in knowing if this gray fungus is beneficial or not thanks.

Thanks in advance.