2' plants first leaves

it depends, if your using incandescent then like 6 inch to prevent burning, if using florescent then like 3 or 4 inches. Hope it helps.
 
CFL/t8/t5/12 = 2-3 inches away
HPS/MH = 12-24 inches away. better to start off further and get closer slowly than to get it to close and burn it.
LED = touching the plant lol, maybe not touching, but almost that close
 
I think he meant 2 inches not 2 feet. If your plants are two feet at this point, you may as well just start over. What kind of lights are you using?
 
if that thing is 2 feet then start staking it up and prepare for a long ride with your 15 foot tall plant lol.
 
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