Small update for now .
The older plants are on 12/12.
I’m supplementing the younger ones with my desk lamp that feeds them on average 300 -500 ppfd.
Ive got a case of over watering on one solo cup so I’ve cut many more drain holes and slits and also squeezed the shit out the bottom of the cup and got a lot of water out. Hoping for the best !
It turns out the soil mix in this cup retains water far far better than my other ones.