So 7/10 have sprouted an have leaves on them. Two 600w HM lights at 30” above the photo
What next?
Congrats!
Just keep doing what you’re doing until the pros on here tell ya different. Lol. Seriously tho fill out the support ticket as best u can. The pros need all the info they can get to assist you the best they can.
Keep them growing bigger pot later like 2 weeks
Dude, unfortunately, you cant smoke em yet 
but this is the fun part. they get big so fast.
Keep posting, we love to follow along
Do you mean MH as in metal halide? If so, you really don’t need 1200 watts of metal halide for that group of seedlings, even 1 MH at 600 watts is quite overkill for sprouts.
Yes I mean HM.
Have backed down to 1 HM
I agree one metal halide plenty for time being. Your soil looks a little too wet as well. Let them dry out a little before watering again, then apply small amount around outer edge of cup. This will encourage root development and get your plants growing little more quickly.
How big of a humidifier should I use for my grow tent? It’s 8*4
At least a 20 to 30 pint a day
@Hellraiser. When should I change from 24 hours light to 18/6 days?
I usually go 18/6 after a week or so above ground.
Do I Ph my water when adding nutrients?