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So I vegged my girls under CFLs for four weeks and stuck them under a 600W HPS. Right off the bat the large fan leaves showed signs of bleaching. I raised the light to about 4 feet away and temps are mid to upper 70s but it still seems to be going on with the larger fan leaves. Should I even worry about it? The newer leaves seem fine but it's starting to effect most all the larger fan leaves. Will it cause my plants to grow smaller/slower? What should I do?
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check this shit out light bleach is on the bottom page just scroll down
they say only way to fix it is to move light away
They might not have been ready for that much strong light all at once? Try and keep a cool air flow between the light and the top of the plants.
Thanks for the graph! Great info. Something I have always wondered about. I'll probably raise the light a bit more and get them use to it. It was just so sudden it freaked me out. Thanks!
yeah...it probably freaked them out, too....:jointsmile:Quote:
It was just so sudden it freaked me out. Thanks!
It's funny, you posted about this subject...I just light bleached the fuck out of two white widows....:mad: ...using a 400 watt CMH bulb. Nothing to be done about it now...except move them, further from the light. This was a slow progression bleaching; that I didn't realize what it was...:wtf:
Will post pics...when I have time.
I read something about the bleaching is caused by the mercury leaking out of the bulb.:wtf: Could this be a fact or not?
Not. :tin foil hat:Quote:
Originally Posted by jamessr
You can induce light-bleaching with an air-cooled hood enclosing the bulb. (if you really want to) :thumbsup:
don't look past the obvious...the light was too close...:cool:Quote:
Originally Posted by jamessr
Not the best pics in the world...but, a good example of light bleaching. Two WW plants 3 weeks into 12/12. It was a slow progressive thing; That I thought was a nute problem...WRONG! The one the left; started during week #2, but I didn't recognize the problem. It has always been a runt, with a poor root system, compared to her bigger sister. Then big sister started showing the same symptoms, a week later.......:i feel stupid:...I screwed the pooch on these...:pimp:...the buds still seem to be growing OK...so far...we'll see what happens next?