Growers Choice - Platinum Mimosa Cookies

Firstly, thank you for all the comments. The weather has dropped to -4C at night outside. I have a small oil filled heater in tent hooked upto my inkbird temp controller. It kicks in at 19C and off at 20C. So my temps are between 19 and 21c. Not ideal. But best I can do. My exhaust fan is hooked upto my humidity inkbirds controller and kick in at 63 and off at 57RH. I also have domes covering my seedling which should boost the RH for the first week or 2. I was delayed germinating my seeds for 5 days due to my last harvest still drying. My seedlings where placed in water for 24 hours. Then placed in my medium in large solo cups. Both popped soil after 3 days, both had helmet head. So I sprayed with water and gently removed these on Monday the 12th. They seem to have recovered and are standing straight up now. Thanks for following along. Any advice is always appreciated