Great news on the mold/fungus issue in greenhouse pots.
An internet search showed it to be “grey mold” which is allegedly harmless to plants.
Itnis a sign that my humidity levels were too high but I am combating that right now fairly effectively.
The grey mold is only coming back in little amounts where I did my napalm style attack on it!
Thanks for sharing your results - I’m sure you helped someone with your efforts!