I have a Peat based medium that I leave (already prepared for throughout the grow) in a huge container well covered in darkness, but im not sure what happened that there was mold in it (gray mold) it wasnt much and it was on the top layer, but the problem is I scooped in darkness yesterday and didnt see it until today, yesterday I used it to transplant 8 plants.
Now im not sure what I can do, I was thinking of watering with a 5:1 Water:3% Hydrogen Peroxide solution… Not sure if anyone has any ideas. or should i just prepare for their eventual death?
you could try to sterilize the medium with some sulfur. It’ll definitely kill grey mold and acidify at the same time. Plants are good with it unless you shift the ph too much.
This wasn’t algae though, I get green algae too specially in early veg, but this was gray mold. Now I’m not a biologist but i believe they are different.