Moby Dick/ Lowryder Auto

This is my first indoor grow, I am growing in a 3x3 tent with 600 watt Amazon LED light. I am using Coco as my growing medium and have mixed in perlite, as well as a 75-25 mix of Gala Greens Organic Dry amendment 4-4-4 and 2-8-4 bloom. The grow started off well I germinated the seeds and then placed them directly into 5 gallon pots. I watered around the seedlings until they spouted. continued to water around the seedlings and they remained healthy threw the week. Exhaust fan was left off and was just running a 8" fan to move air in the tent.