Advice on my first grow
Hi everyone, I barely make posts on here but I’m in a little predicament. I got some golden teachers, that I started off in a grow bag. All was going well, as you can see in the pictures. However, I’m not too certain if it is contaminated. There is no off smell. Just that brown spot in the second picture at the bottom of the grow. It appeared last week and hasn’t grown any bigger just stayed the same size. Also if they’re ready to be harvested. The bigger mushrooms have dark brown gills. Which I know is one sign it’s ready to be harvested. But I don’t want to fuck up my first grow. So I came here to ask you guys what you think. Is it contaminated? If so, what should I do? Is it ready for harvest if so can I harvest the more mature mushrooms and leave the less mature ones to grow a bit more?