Hello, today i've spotted this on one of my babies (cherry bomb auto 30 days old). This is the only plant that is having the issue so far. The leaves are somehow dry and where the spots are you can break the leaf. What do you think, is this early signs of nute lock or something else. I'm growing in compo sana soil in 15 l pots (20 litres of soil in each pot). Unfortunately before planting the seeds i do not flush and saturate the soil with water days before. If this is lockout, do i need the flush the plant now, and with how much water. Do i need to flush the other plants also, without them showing any signs of anything, if the case is what i did. Thanks in advance.