So the increase in feed is going well and the plants are drinking more and more. I measured the heights of them and adjusted the lights as one of them was not level. might have been that way since last adjustment, I kept hearing some poping noises coming from the tent so could have been that as well.
#1 33cm
#2 28cm
#3 27cm
#4 18cm
#5 38cm
#6 43cm
#4 is much shorter then the rest of its peers, but we will see how it goes long term.
As I though some slight yellowing on leaf tips but nothing crazy, PH going in at 6.2 coming out at 6.49 not bad, matching the trend in EC difference. EC going in at 1.4 coming out aorund 1.0 So might want more food but more frequently vs more at one time. I could try and get into a new watering routine but I really don't want to. Something easy maybe to mix up a jug that I just give them between normal watering that has light feed in it and will not get runoff with it. The runoff to prevent salt buildup can come from the main watering.
Also found a weird looking something growing on plant #3 medium. Took some photos of it. Looks alien. going to let it grow, that plant is doing fine.