Hello everyone I'm a newbie grower and grow autos for first time, here are some pictures of my seedlings. I noticed some yellow color and strange dots I've read tons of information but still none of it is focused on these damn problems. Looking for any future advances and fixes.
Let's consider that I have some mites or anything else as bugs, what's the most non harmful effect for cleaning them? In the long term ofc. I don't want to feed or to do anything to them beside nutrients.