If it is what I think it is, you won't believe me...

There was this system that ran 4 600 watt bulbs over a 4 foot x 4 foot area. Andthe lights were kept at about 4 - 8 inches from the tops of the plants.

Well the tops of the plants lost all their pigment..

IT WAS TO MUCH LIGHT!! This happens to plants at HIGH elevations that are closer to the sun.... It supposedly is just to many damn lumens and the tops of the plants turn yellow/white. They don't die or suffer any necrosis. If you pull the light away even an inch, the plants get their color back.. see how the plant in the middle that is closest to the light is the lightest... that's what clued me in...

Now the problem with this theory is that you are only using a 150 watt bulb...
go figure.. just my 2 cents...


I took a close look at the pics...do I see red stems? You can take some of your soil and stir in water .. let it soak for a couple hours and use a PPM meter on the water...
I think this works... and you can find out your soils ph too...
Garden Knowm Reviewed by Garden Knowm on . AAARRRGGH!! Zandor/Latewood Need new help PLZ I don't know if this should be in a new thread, but didn't seem to be getting any response with the new post on the last thread. I have an issue with these two and am, quite honestly getting a little confused. I have been through every possible page I can find on Overgrow, and many 100's of threads here. Symptoms seem to be mimmiking deficiencies, N or FE according to Jackerspakle, and the pics he or they have posted seem to verify that line of thinking....however, I also found a section that Rating: 5