1st grow - Stone and CBD

I put the seeds in a 2dl glass of water mixed with liquid seaweed (5ml) for 24 hours and then transferred them onto moist paper towel placed between two plates and put on top of my fridge. After 24 hours three Mimosa Lemon Auto Fem and three Black Light CBD Auto Fem seeds cracked. I left them on the towel for another 24 hours during which time the tap roots grew to about 1.5cm and then transferred them into pots. 1l pots were filled with my soil mixture and slightly pressed. About 3cm deep hole was filled with about half of teaspoon of Root mix which was then covered with a bit of soil and germinated seeds placed inside. I filled the gap with soil and covered the seed with a thin layer as well. On top of the soil and about 3cm away from the seeds I placed a few Boost Organic Nutrition pellets. After another 24 hours, one more Mimosa Lemon and one Seedsman Northern Light Auto Fem cracked on the towel. They were again left for additional 24 hours during which time Mimosa's tap root grew to about the same size (1.5cm) whereas that of the NL didn't and stayed about 0.5cm long. Both were panted following the same procedure as the first ones. At a time of planting the second batch of germinated seeds, plants from the first one already came out of the soil reaching about 1 cm in height and having two sucker leaves. The pots were placed in a small compartment with two Twin 60cm long LED Batten light producing white light (6500K) using 25W and emitting 3000lm each. The lights are about 50cm above the plants. The compartment has a heater which heats it to 25 degrees Celsius. RH is 65%. The soil was watered prior to planting with clean rain water having pH 6.5.