HPS does not produce the ideal blue and green light waves needed....

But there are several other factors needed to know:

Temps
Water pH
Strain
Age
Height of plants
# of nodes

Also pics would be great.

Also is your HPS reflected?

Thanks
HARDDON Reviewed by HARDDON on . My plants must be stoned...... Alrite I have a 600w HPS on 12 plants and none of them seem to be makin progress, I know the light isnt too far away from the plants because there is no strachin....just wonderin if there are any others factors that could be afectin slow grow Cheers... Rating: 5