Purple Lemonade Auto; first grow

As the tap root was pointing out of the pellet, I transplanted it into 0.3 pint fabric nursery bags. I've let them in it for 24 hours but then decided to transplant it into even bigger nursery pots, since they seemed not big enough in comparison with the pellets. I have been extra cautious with the roots, so I hope it won't cause them too much stress... but I think it was worth it. They're now in about 1,5 pint fabric nursery bags. Environment: In early veg, I maintain between 26-24°C and 90-80% humidity. The classical music doesn't seem to harm, so I keep going. Light: Starting from the minimum level, I turned it up of 10% a day up to 40%. Today (day 7) I tried 50% but I see what seems to be presigns of light burn, so I will stay at 40% for the moment. Watering: I started using Rhizotonic in addition to Cal-Mag (>350 EC) for days 4 and 5. Since yesterday (day 6), I use in top of that Diamond Nectar and Canna Coco A and B (>500 EC). Since the starting water is distilled water, I can aim a little bit higher in term of EC since I'm starting with EC about 0. The pH range is about 6.4-6.0