Auto White Widow - First time

So this is my first time growing anything ever. Did my research but experience is something you learn as you go. Here for thoughts and advice from experienced growers. I actually had 5 Auto WW to begin with but one died do to heat stress. And me being unpatient (Amazon took forever on my order and didn’t have a thermometer and vent, came 5 weeks after ordering) and starting my grow early thinking id have everything on time. Started germinating on 6/6 and by Saturday 6/8 planted in my 5 gal pots with 70/30 coco to perlite. The white labels are ones in which the miracle grow perlite was flushed while the pink are unflushed. Def flush them..These pictures are a the end of week one after planting so 6/15. Didn’t give any nutes for the first few days which i later found out I should have once the first serrated leaves started appearing since im growing in coco coir. Maybe one of plants wouldnt of died 😭. Actually I should have just ran 2 boards or dimmed my lights. My setup 4x 288 LM301B 3000k/660nm Quantum boards each at 120 watts 48x48x80” Ohuhu Grow tent Ipower 6 inch 350 CFM inline Mother earth Coco Coir 50L Miracle grow perlite (all i could find locally) Inkbird AC Dual stage humidity controller Vivosun 5 Gallon 300G fabric pots General Hydroponics Flora Trio, and PH control kit Botanicare Cal-mag Plus Pancellent TDS and PPM reader Great White Mycorrhizae