I noticed this 4 month old clone has started to develop deformed leaves. There has been no issues up to this point. I have topped her to manage height in my 2x4 tent. FFOF soil with FF nutes 1/2 strength per schedule.
it seems to be on one side. I didn’t think of the fan issue. It’s right next to it.
Is it on one side of your plant or all over? Do you have a fan or heater close by?