AK420 Autoflower

Dear diary, this is my first attempt growing cannabis. Bought this setup for about 350$. Seeds coming from Seedstockers. I grow while i do my research. Setup info: Tent is a 0.6x0.6x1.3m Exhaust 100 cfm Soil light Mix Biobizz, Soil with light mix of nutrients and perlite. Day 0: I soaked 3 jiffy pellets and sticked 3 seeds 6mm under soil. Day 1: One of them came out about 72 hours later,i only saw a white hair above soil. -DATE 07.04- Day 2: She got up real fast,she's now 75cm under lights. Day 3: She grew a bit,but i saw 1 white spot on one of her cotylids. Day 4: Changed distance to lights to 25cm,and transpanted her in a 7L pot. Day 5: Another one germinated after i gave water and natural light.I destroyed the 3rd one.Changed distance to lights to 55cm.(lights manufactorer says about 8.5k lumens) Day 6: Plant A is growing and looking healthy.Transpanted plant B at germination day 2. Day 7: Bought a thermo/hygro device from growstore to see whats happening.Maybe i should get more humidity for both of them. -DATE 14.04- This week i was watering plant almost every day by very low quantities as long as it was in the jiffy pellet alone.Dosage was almost the same.About 15ml the very first days to 50-60 mlk when transplanted. What's in my mind: A)LST,Topping.These subjects now i study and im horrified to even touch it. B)What about spraying some water on her leaves.She seams to me she needs some.