3 day old Seedlings

I am using 400 watt MH/HPS
Bubble Buckets
GH Nutes
Earth Juice/Sensi-Cal
Violater Kush

I have a few questions..I want to go 12/12. Do I start now? after only 3 days or should I let them grow for a few weeks? Should I be going 24 hours of light on them? (is that ok to do). Or should I start the 12/12 now? While still in the seedling stage should I keep them covered with the plastic dome? Temp right now is 80 and RH 50%.

Thanks all

Do you have a small space? Do you want smaller plants?? If so go for the 12/12 now..

I never heard of using a dome on seedlings. only clones. If you want to keep them very short, and a acheived a faster but lower yield, go to 12/12 now. If you actually have the space and time to get a decent harvest, set the light to 18/6 for around a month.

iron joint said:

I never heard of using a dome on seedlings. only clones. If you want to keep them very short, and a acheived a faster but lower yield, go to 12/12 now. If you actually have the space and time to get a decent harvest, set the light to 18/6 for around a month.

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Yeah I vegged a lot longer on my SD grow, I want a decent yield though. I have the space and time for it. So 18 hours of light? and six hours of dark?
Thanks for the reply.

grapesnowcone said:

Do you have a small space? Do you want smaller plants?? If so go for the 12/12 now..

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Have a good amount of space. When the SD finishes I will have more room as well.

Some kind of mold developed on the seedlings...I took the dome off and put them under 150 watt HPS. I hope that helps them out.

you can also go 24 for a couple weeks then switch to 12/12

if you remove the cover, spray them a few times a day to transition to a less humid environment. i would remove the dome now, they look sretched.