Hashyanswered grow question 3 years ago Your right with the dose of nutes for this stage. The temps should be about 24 deg. Humidity about 65% for this stage of growth. If your temps are to low you may be pulling to much air out the tent to quickly with the extractor fan. A speed controller will enable you to slow that down a bit. I find if my temps outside the tent are 20deg then inside the tent will be 24/25deg. So in colder months I put a radiator on outside the tent