Switched to 20 hours from 18. Also did a little more lst today. I’ve had issues with ph, I have her in an auto pit and officially started using the reservoir to auto feed/water. This is my first grow with an auto pot and also cocoa. But, she is growing! Lol Gotta shout out @roberts, thanks again ! Soooo… turns out I had my two plants(1 photo/1auto) backwards and that was the reason for yellowing leaves, it was being under fed!! Looking much better now.