Vegging under 200 w LED light.

[AloeRuss]

Hello. I’m vegging under 200w quality led lights. Humidity 70, temp 80. 700 ppm of flora nova micro and gro. PH 6.2
The bottom nodes on most look like that. This is strange. Any advice please.

 

[Creeperpark]

I Use pure water with 126 ppm cal-mag and about 200 ppm Gen Hydro on plants that small. I don't know what substrate you are using, but when I use a peat, my starting pH is 5.8.

 

[f-e]

I don't think your feed exists?
That stem looks a bit dark. You might have an issue underground.
Downward cupping is usually blamed on excess N, but I'm not convinced it always is.
Stunting is usually P or Ca if feed based. P makes bushes.
Tips may suggest Mg
That odd stunting is strange enough to look outside the usual choices. B perhaps.

Of all the possibilities, I fancy a root issue is the cause. Or you are feeding them nova and micro.