A 10-15 degree drop is pretty natural, 10 is better but ive grown in months with a 25 degree drop and haven't noticed much changemy girls are going from 80f when the light is in to 65f when the light is off this is a drop of 15f is this ok? iv just put my girls into flower so 12hrs its 80f then 12hrs its 65f its really hard for me to control the tempture how will this effect my grow??