This showed up the day after I watered my rooted seedlings and clones that are different strains. The seedlings are Black Banana x gg4 and the clones are Cookies Kush. I watered them the day before with first week veg nutrient and some michorhazae. It showed up on the seedlings first then yesterday I noticed a couple spots on my clones. I immediately just rinsed everything with ph’d water and today the seedlings are the same but nearly everyone of my clones are showing signs. It’s spreading quickly and freaking me oot a little bit.