Northern light auto DWC

the seeds germinating since yesterday, when the germination will be good, I will put her in a little rockwool cube (3*3*3 cm), in a box with a bottom of water and roots stimulant to get the first roots. After that I will put her in the net pot. with this plant, I will try to correct all the issues taht I had with my LSD-25 (light in the bucket, solution temperature, roots stimulant, the place of the rockwool on the net pot, the cube's dimensions, the watering of the plant on the beginning,,...) Day 1 29/06/2020. I put her in the bucket yesterday, with tap water and some roots stimulant. I hope she will grow good, I will try to cerrect all my mistakes with the LSD-25. Day 5 03/07/2020. I was a little stressed since the day 1 about the roots. I corrected many problems I had with my LSD-25 and I wanted to have roots more quickly on this grow. And it's the case! this morning, I saw the first root out of the net pot, and since this morning she took a boost with this roots. I'm pretty happy, hoping all will be good. I put an ice pack 3 time per day to have a water around 18-20 degrees.