seedling light shock?

[axl]

I just put my 12 day old seedlings under a 400 mh bulb, 4 feet away, from a small floursecent. Originally it was maybe 2 feet away and a couple leaves began to turn yellow, so i moved it. However ,its also the first time I fed them, half strength root 66. I also transplanted them into a larger rockwool cube. Is it possible its just the combination off all of that causing a bit of shock? Or was it simpy the change of light intensity.

 

[LadyKimi]

U did not tell us why you thought they were in shock....

 

[axl]

they are turning a tad yellow in parts of the leaf, the tips of a few plants and with in the stem.

 

[DoeEyed]

Mine go under the 400w Mh at two weeks old, no problem - you should be able to put that light about 2 feet away. Sounds more like they are hungry.

 

[LadyKimi]

This might help a little...

http://www.greenmanspage.com/guides/plant_abuse.html

~Lady

 

[NoDrama]

Does the sun kill seedlings in nature? No. It aint the light, I start seeds under 1000 watts of HID and they grow just fine. the sun is way more than 1000 watts. Sounds to me like overwatering, especially if using rockwool. Rockwool soaks up the water big time.

 

[whiteflour]

Does the sun kill seedlings in nature? No. It aint the light, I start seeds under 1000 watts of HID and they grow just fine. the sun is way more than 1000 watts. Sounds to me like overwatering, especially if using rockwool. Rockwool soaks up the water big time.

No joke. I started a few under 1000w and they love that shit huh? Come right out and was stickin straight up, probably got motivated about 12-24hrs faster than my others!

 

[NoDrama]

No joke. I started a few under 1000w and they love that shit huh? Come right out and was stickin straight up, probably got motivated about 12-24hrs faster than my others!

Fo Sho. plants grow much much faster when given enough light.