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I plan to grow a plant under a white 7000K light (big InGaN LED array). Is this color temperature good or is it too high? What color temperature is ideal for growing? I suppose if 7000K is not ideal I could just built this light using a combination of high power red and blue LEDs instead.

please delete this post, post is now irrelevant given changed circumstances, sorry for any incoveniance.

WHAT WHAT WHAT See attached images. Images show yellowing/pinking lower leaves during week 3-4 of flowering. One image shows the healthy developing bud and top leaves of the plant. Only the lower leaves are affected. Top leaves look very healthy, but several lower leaves appear as seen in...

Some beginning flowering is happening. What ratio N-P-K fertilizer should they be given at this stage? Currently using the same 3-3-3 Organic fertilizer from veg.

I had planned on flowering plants in 2 gallon containers, but lately they've all been very droopy, and they aren't overwatered. I assumed they might be rootbound. But can't plants live in 2 gallon containers happily without needing larger containers? Also, if one were to transplant from 2 to 3...

Would a 200-400w HPS be safe in a 16ft³ grow area with mylar-covered walls? Ventilation is ~60CFM. Thanks.

UV lights (and probably HPS lights too) are very bright and can physically damage your retinas, over time if not only acutely. What do you use for eye protection in your grow room? What's best?

There are yellow spots on some of the leaves of a plant, and I can't think of what's causing it. Light: CFLs. Water: distilled. Fertilizer: 3-3-3 all-purpose liquid organic fertilizer with multiminerals. Diluted it in distilled water and ph-adjusted it 7ish with dolomite lime pellets...