What is happening?

make sure your not over feeding as well. Best to get an EC pen to confirm concentration of feeding solution. Good Luck!

The issue is too much water. In soil you need a wet time and dry time with cannabis. Try watering sides to help achieve this in turns. Water once every 3 to 7 days might be all you need at this stage depending on how fast it dries out.

Hey buddy. I think this is a case of nute lock. There is no need for any reason why you are showing defs. My theory is, it's nute lock. You've used too high a mix starting out and are you mixing them together and then feeding? Cause if u are, you need to be spot on wit the mixing and give regular water feeds, as any salt build up, will cause nute lock. The micro has so many different nutes in it, really early on, not so much of that is needed. So try this for a fix. Do a hard flush. 5-10l of water, make sure you have good drainage. If you don't have good drainage don't do a hard flush. Just flush regular, by giving 2-300ml of water every 2-3 days for a wk. Then start off with just the grow and micro. Drop the bloom it's too early for that anyways, and way too much for an auto or even a fem that young. Your soil is salt riden and toxic, why you are seeing what you are seeing with such a high dose of nutes that work. As I said, just start out back on the grow 200 ml 1ml/l grow 2 days later water 200ml 2 days after that micro 2 days after that water and If she's looking healthy 2 days later just more water but if you think she can take it just feed every 2 days water and so on. Repeat. Build back up your plant. If you are doing a mix making up grow/micro 1ml/l 500ml give half then 2 days later water, 2 days later give the other half and increase or decrease as you see fit. If u need more info DM me. With AN line nute lock is very common if you do not flush espically in soil there line is full of salts/Heavy metals espically the micro. Good luck pal

Is your soil always wet? Do you let it dry out between watering? Well drained? Or do they stay wet for awhile?