First legit grow

I have never used a powerful light before, back when I was younger in the 90's I used CFL. From what I'm reading and looking at the leaves twisting are a sign of light being too close or too much. So throughout this week I've been trying to get the light to a much lower setting. If anyone else has the idea of what the leaf twisting could be let me know. I added a little nutrients to the cycle this week I think 7/17. They still have the cotyledon leaves (most of them) Reading up though somewhere said 3rd node so I started with a tiny amount like 1/4th the recommended dose for everyday feeding just to see how they tolerated it. It is taking my water's EC up ~0.3 points. The nutrient is a mix of the 2. I would like to use Jack's 20-10-20 but this is all I have available near me. In these pots I'm watering each a little over half a cup each watering (until I get a little drainage). As of right now 7/20 we are needing a watering roughly 20-30 hours apart. I will be adding one more picture to this week tonight (7/21) to end the week.