That photo is exactly like my white widow.. ive just checked my morning temperature and its as low as 8 degrees. I now need to invest in a temperature control system and some sort of heater but im tight for space and money. I have a small habistat heat pad and controller for my clones but believe i need an air temperature heater so its time open the wallet again. An after thought to PH.. if what the hydro shop has told me is true and i dont need to PH then everytime i just water and not feed im shocking her everytime with a PH indifference as i boil then filter my water and add nutrients or leave to stand. So my PH levels must be different from just water to water and feed. Shopping list is getting bigger, a meter and PH controllers.. Im using ten litre pots, i keep a log of all feed and water and have noticed when i feed its dry within hours but when i water its roughly 24 hours before dry. I wanted to diagnose the yellow tops before i continue with my feeding schedule and i think pushit youve done it so thankyou and i will keep you updated. Any suggestions on heating systems? Ive seen a tube heater available but ill need two, one for my veg room and one for flower.. i honestly thought the HPS would provide enough heat for the flower room but the exhuast fan must be doing its job a little too well. Could i connect a climate controller to the exhuast fan and use that to regulate temp or would that lead to smell problems? That wont help me with the light off tho..
Am i right in saying you want a ten degree drop in temp during dark period so id be aiming for 30 degrees down to 20 degrees?
Thanks again d0ct0r