When to place seedlings under 400 watt air cooled mh

Mad Hamish

Mad Hamish

Well-Known Member
What do you mean 'nothing goes your way?' Mine germinated and are vegging happily under 400w MH. Are you using a tent? What size? Could be you've just got your hood way too close for seedlings. A cool Tube doesn't always mean you can bring the light close, it only prevents heat build-up. There is such a thing as TOO much light.
 
G

GrowForReasons

Member
It almost look liked something was nawing at the root I went to touch one and it completely came out of the soil cut at the root and this happend to multiple seedlings and I've never had a problem with outdoor at all my whole life it's just disappointing after buying everything I need and my seeds doing this
 

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md97

md97

Active Member
^lol


btt: I guess you can place them anytime under the 400mh as long as you have the light at a proper distance to them.
 
Mad Hamish

Mad Hamish

Well-Known Member
GrowForReasons said:
Is mine at a proper distance four feet
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Looks good bro. If it is too close, your plants will 'bleach' like this one:



And if it gets moved up it will recover to this in a day or two:



Only way to tell if there is too much light is bleaching like what I accidentally did to this seedling right here.
 
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