Problem in the first days of Veg

Hello,

Looking for some help here with the next situation:
The little girls in the picture are in veg phase for 3 days now and they seem to have a problem and we are trying to figure it out. I ll leave you here some details & maybe you can help:

• their PH is 5.8 - 6
• EC is 0.8
• Humidity 60-70%
• we have the same routine as before - and it went all good except this time
• the situation in the pictures is happenning with ALL the plants, no exceptions
• We’ve put them in the veg stage using reused pebbles, that have been washed with hydrogen peroxide & rinsed 2-3 times. This is a method we’ve applied before and it didn’t went wrong. But this time…
• Something that is different is the fact that this time we added a few drops of SuperVit Vitamins & amino acids for plants

If any of you has any ideas about what this could be, would be a very appreciated help.

Thank you!

Ec levels look a bit high for that size plant I'd be between 4-5 ec at that stage hope you get it figured out

If you had sucess before, I would loose the one thing you changed.. SuperVit..

Go lighter on the Nutes they’re pretty small. Can always add more, harder to recover if you do too much

what kinda food are you using? i used some hella granular feed, and it built up in the elbows and the lines without me realizing it, i kept seeing overfeeding on em but the ppm's were right but the plants were unhappy then i swapped out my pvc lines and there was a huge trail of dried nutes at the bottom, feeding back into my system throwing off my feedings. i dunno maybe this helps
good luck
what are they?