1st grow Wedding Cake, Watermelon, Sweet ZZ

Hello again, we are on our 14th day since potting the seeds or 11th day since germination. I'm very happy with the progress of my little ladies and not a single one showed any signs of malnutrition, which makes me glad, because for the most part I was battling with constant low humidity in my growspace (hovering in the 30-40% range, before I got a humidifier up and running). For now the Watermelon seedling will hold the title of "runt of the grow" she just did not want to grew for a few days but she's got it in her for sure. At the start of the week I finished my first nutrient solution and so I prepared my second one at 70% of the recommended dosis. This solution has a final EC of 0.7 which should be fine for the young plants. I was watering them with the solution every 2-3 days, where I was giving each plant 40-60ml depending on their size. Apart from that I was just spraying the earth once or twice a day with a spraybottle (lucky me avoided overwatering them). Now I am checking the bottom of the pots every day for roots, in preparation of repotting the plants starting with the Wedding Cake seedling, which in my opinion should happen in a couple of days. Also I lowered my lamp from 90cm to 75cm above ground. Have a nice week, thanks for reading and stay green.