Grow #2 - First Time Indoors

No nutrients, only 1 light watering so far. Had to turn light down a bit due to twisting/cupping, slowly bringing it back up. Finally got the environment controlled at consistent temperature and humidity. The larger plants labeled “BAG” are about 5 days ahead of the other seedlings, so they are technically on day 12 while the seedlings are 6-8 days. Roots are already poking out of the holes in the solo cups. Never used this size container before, not sure how long I should be leaving them in there once root development is visible.