First time solo grow with autos

Currently watering about twice a week, temp relatively low with the LED so evaporation is low. 2 days ago I added a small fan to make the leaves gently vibrate, which seems to increase evaporation. I have started using CANNABIZ LiquiCompost, a local organic product alternative to BioGrow. Using it at 1/4 of the recommended rate for first 2 waterings. Soil/coco/perlite growing medium does have some nutrients already do don't want to overdo it. Noticed one auto plant getting a little wrinkle on the leaves after the most recent water 24 hours before, the rest of the plants are fine. I have read autos dont need as much nutrients so will try next watering without nutrients on that plant. Currently can only measure PH and not EC so will just need to monitor - any feedback / opinions on what might be causing the wrinkle are welcome. For those wondering - I started adding Vermiculite to the top layer of grow medium in the pots - as small flies were buzzing about. This seems to have helped a lot.