I know exactly what you're talking about, should just be rock material. I've had the exact same thing happen to me many times and it's never affected any of my plants/clonesThere are shiny black specs appearing on my rockwool. Please dont tell me i have bugs. What do i do.
nothings moving, my camera is shitty. I tried to crush one of the specs and it felt like a rock. So 1 its not a bug, and 2 i dont think mold wold grow to be that hard. I used worm tea, so maybe its specs from that. Or what "the meth king said" lol.rockwool has small shiny specks in it, you probably didn't notice it before. See anything moving? Any bad smells?