Hey Rev- well, they are in my closet and they can get a bit cold. To be honest, I am not exactly sure of the temp in there, however I need to start monitoring it as I realize it will be an issue. I think I need to transplant within a week or so. They are starting to move big time and they took to their first feeding really well. Only watered them today and will wait to feed on Wednesday. I am on a 18/6 and will go to 12/12 in about 20 days or so.