LOWER LEAVES CURLING DOWN!

Hey guys! Hope you all doing well.

I have an issue with my plants and any kind of help will be greately appreciated.

So I took 32 clones(amnesia haze) from the store 6 days ago, transplanted them into 3gal pots, used azos, 1tsp/gal of molasses and quarter strenght CANNA RHYZOTONIC(root stimulator) with 2L each.
EC was 0.2 and PH was 6.5
Lights on-25/26 , lights off 20/21 degrees celzius
RH: 50-60%

About a day ago I've noticed that almost on each plant I have 1 lower leaf curling down and dying, but everything else except that looks fine, here are some photos of the girls so you can make better judgement.

And btw, clones I took from the store were watered that day, but as I had to transplat them into bigger pots(3gal/11L), I had to water them in order to saturate the medium(gave them 2L each). It's been 6 days since I planted them and watered them, and the soil feels like it could go at least 2 or 3 days without water which is obviously too long period between waterings.