Critical Kush Appraisal

Hello. This is the end of week 4 and the beginning of week 5 of veg. Things are going fairly well in here. I got some browning on the end of some leaves. About a week and 1/2 ago a left these plants get too dry for a day and I got some dead spots on the end of some leaves. I also was giving them my complicated nutrient mix with too cold of water. I have since given a simpler nutrient mix with warmer water and they seem to be doing better. It's winter here. The tent isn't getting much over 22*c with the lights on. I've also got an electric heater on low in the room with the tent trying to keep them warm enough. I ordered some more seeds and they just got here yesterday. I got some free seeds with the order. I got free from Mr. Nice, Critical Mass, 30 reg seeds. So now I can breed Barneys Critical OG x with MR. Nice's Critical Mass and hope for something good.