1st grow on a DC unknown seed

Lights: P2000 @ 50% (550ish PPFD) Distance : 12" (30 cm) Day 0 put in paper towel - Started germination by putting seed in paper towel and keeping on warming pad Day 1 - It had roots on the 2nd day and will plant tomorrow in FoxFarm Soil 3 gal ( should have done solo cup to then 3 gal) Day 2 - Seed poked through soil Day 3 - Its slowly raising up to open first shoot Day 4 - 1st photo shows 1 hr after lights were turned on. It looks like it might start opening, Will take follow up photo at end of the day Day 5 - we are seeing change from not showing leaves to they are popping up and looking nice and green. We are starting veg state tomorrow Day 6- It's more open, but still first leaf is about to show. Still in germination stage till first true leaves show and they are almost both showing. Day 7 - It's opened for sure and 1st leaf is out and marks end of germination. I have notice curling is still occurring and i believe this is due to 2 factors ; overwatering and to much light - raised from 14" to 16" and keeping light 50% and thats about 380-400 PPFD from the 600ish it was before. -- I already watered after thinking about that and added 1ml to my .75gal water, thinking this will help and to start the calmag schedule Last watering was on Day 7 and will hold out for day 9 for watering and see if it starts straightening out :(