Light Distance On Seedling

whitebombs

Well-Known Member
so my seedlings(3) are about 2 inches tall...what is the closest i can get my 400 watt MH without hurting my babies? steching is a big fear of mine in my system
 

whitebombs

Well-Known Member
O_O I have them at it at 3 feet!
will this fry em?
i'm gonna move the lighting hood all the way up for now! when should i begin lowering?
 

whitebombs

Well-Known Member
anyways it is near 4 feet now and i hope its gonna be okay, i can't get 5 feet away.

when is a good tome to start moving the light closer? and how close?
 

Seedlessone

Well-Known Member
Move it according to growth. Once they get a nice set of two sets of true leaves you should be fine to drop that 400 on top of them...well of course keeping the heat factor in mind. i just did the same thing with the same light. i started out at 5ft. then i moved it around around 1ft a day..and now i have the lights at about 14 inches. I will probably move it down to about 11 or 12 inches tomorrow. Hope this helps
 

whitebombs

Well-Known Member
seedless i am tryin to figure out you said you started to drop them about a foot a day...starting when? i measured and the biggin is at 2 and a half inches with 2 weird leafs 2 weed leafs and another small 2 starting to sprout
 

Seedlessone

Well-Known Member
The light was five feet when the seeds where planted. The light remained there until all the seed casing have cracked; expsoing the first set of leaves and just starting to work on there first set of TRUE leaves. From then I start to move the light down. Aprox. 1ft per day. The distance you move the light depends on your plants growth. For example my babies have three heathly nodes and the 400w is 11 inches away...they are eating it up!! They are 9 days from seed. Hope this helps
 

whitebombs

Well-Known Member
the roots on one of my plants grew faster and on my other 2 they are yet to break free from the foam stuff... so one plant is twice or 3 times as tall. i want to keep lowering light...except i am afraid to fry the stragglers
 

freddog23

Active Member
The light was five feet when the seeds where planted. The light remained there until all the seed casing have cracked; expsoing the first set of leaves and just starting to work on there first set of TRUE leaves. From then I start to move the light down. Aprox. 1ft per day. The distance you move the light depends on your plants growth. For example my babies have three heathly nodes and the 400w is 11 inches away...they are eating it up!! They are 9 days from seed. Hope this helps
i also had questions about the distance from a 400w hps. so you say after the third healthy node you can have them as close as 18 inches aways. i was paranoid and have had them 3 feet since seedlings.
 
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