what does this mean

[sickbiker]

Some of the leaves on my plants are curling up on the edges. I droped my light for 20in to 12in away from the canopy could that be part of the prob or all of the prob

 

[v35b]

Could be.What is your light source?

 

[sickbiker]

400w MH

 

[Thailord]

Could be a heat problem as well. What is your ventilation and temps?

 

[sickbiker]

4in inline exhaust fan and a air cooled hood. I keep them around 79 and 50 to 65% Rh

 

[trillions of atoms]

pull the light up...wait a while if they dont fix themselves raise it a little more....repeat until you get ridges that form in the upper leaves- your in the zone.

 

[sickbiker]

thanks my friend will do