Thanks, indeed got to catch it early.
Its a normal routine of mine to clean the tent every so often. But in the past I did not document the process so maybe that is why.
Indeed that can happen. Though my problems this year I can point to being related to changing my potting soil. If I stuck to Miracle grow I would have had pretty happy plants.. But the problem with the Miracle grow is I heard they add fungicides, and since I want to use that fungi powder for their roots I needed to find a different soil.. well the one I got was crap.. So here we are now.