First grow

Ive decided to give 3 autoflowers a try for my first ever grow, before I germinated the seeds for 18 hours in spring water then placed onto two paper towels and left for 48hrs. I prepped 3 3gllon fabric pots with coco and perlite and watered with 4 litres of tap water and 2ml of cal mag before I planted the seeds. After I planted the seeds I covered with half a 500ml bottle of water to make a little humidity dome and left under my led. On the 16th of March the day I am calling day 1 because I had a little green leaf pertruding through the coco. Day 2 they had shot up to about an inch tall so I decided to spray the foliage with some mixed rhizotonic and ph water ph6.2. Day 4 and my humidity has been sitting around 50%-55% Day 5 was a bad day because I was testing out an 18 led 54watt full spectrum light from amazon and it had fell from its clip on stand directly onto one of my plants and flattened her. I stood her up and pushed coco around the stem and buried where she had bent and sprayed the hell out of her with the rhizo mix. It was a bad day..... Day seven and she looks fine.