Just a tip on your heating idea

I am an LED grower and my light runs completely cool. What I do for heat is incorporate 4 x 20w CFL. The nights can be quite cool so I have the lights come on at night to compensate.

I just find it a better idea to heat with light where you can. Perhaps if your days are cold as well as your nights heaters might be your best solution.

But definitely think of heating with light if you can manage it

Take care !
silent leprechaun Reviewed by silent leprechaun on . White widow problem? I am 6 days into flowering and have noticed two things.. one the lower half of the plants leaf tips are curling down which i think is P so therefore not enough nutrients but at the same time every top is bright yellow almost looks like nutrient burn. To anyone that has tried growing this strain were your tops bright yellow? I have a moisture meter and only ever feed/feed/water and repeat when dry as ive read you must let them completely dry out then drench to avoid air pockets and roots Rating: 5