Critical in new custom soil recipe

This was a very chaotic week for the grow. One of my LEDs broke and a harvest is taking longer then expected so I needed to rearange my tents. As a result, this 4 babys are now sitting in the middle of the room without a tent, only under their light, after being moved between different environments way to much. Thus, the ups and downs in temperatur and humidity were pretty intense the past days, causing some of the leafs to curl and to have some spots. Nothing unusual if the babys get treated this way. Besides that, leaf surface temperature ranged from 23°C to 26°C (73,4°F to 78,8°F), RH from 48% to 75%. To reduce stress, I'm still dimming the lights to 15 DLI (upped from 12 DLI last week). Since the low DLI lowers growth, plants also need less water. If healthy grow continues, I will increase DLI to 20 over the course of the next week. Also, they got a sprouted seed tea this morning. Nothing fancy, just 100 g alfalfa sprouts blended in 500 ml water fairly distributed between this 4 and 2 other babys.