6 beauties i always waited for to plant

Its getting really cold, so I need a heater for the night. I already set the lighttime into the night, so the heat of the Light will help a bit. Dont know if it will work in such a big tent. My ventilation is running only a few hours at daytime. Overwatered them a bit with too much nutrition, the blueberry did not like that a lot, but all of the look healty.