HELP! Yellowing, and curling plants.

[herbgrower]

Just small piece of advise, may be you already know. Do whatever need to do but don't do it while lights are off. You risk putting plant in accidental re-veg. In light period try putting a working light and turn grow light off for the time being.

 

[Rwise]

This is highly debatable, I have left the lights on for 24 hours without any reveg or any other noticeable problems. 1 thought is it takes a week or more for the plant to develop the hormones needed to reveg. And for those that dont want to take any chance whatsoever can get green led lights for night time viewing of the plants.

 

[herbgrower]

Rwise For photo-period grows? I read cannabis plants are very noise pollution sensitive. Seen many posts around when grower used camera flash and grow got affected.