Critical purple auto

Haven't run into too many issues yet. Finally got an exhaust fan and carbon filter and added a spider farmer sf2000 to the tent. My first grow and i havent done enough research im kind of learning as i go. Trying to get this watering schedule down packed and trying to figure out how to keep the environment as steady as possible with the temps and humidity levels. I started 3 more Autos from a different company and it seems like 2 of them popped up and just stopped growing, the 3rd one is growing nicely but im questioning everything now.. We'll see how this next week goes.