Northern lights x lowryder autoflower

I added back the vegetative growth fertilizer in addition to the bloom. Both 1/2 tspn/gal during this week, thinking of giving them a week off of fertilizer during week 8. I also lowered my space heater down to 65 degrees in the room i have my tent setup. Inside tent daytime is 69-70F, nighttime 65F. The yellowing and curling tips haven't gotten terribly worse. I have killed so many gnats with those yellow sticky traps i cannot believe! Must be the soil, just your standard MG. I won't be using again. A wolf spider lives in the tent now maybe it will help too. The smell is great!