1/25/2022:

Recently started my New Kratky Hydroponics Seed Starting System, patterened off Jack Spirko’s YouTube video (https://www.youtube.com/watch?v=pS42IMyhM1c&t=351s). I have only one of the three shelves going, 30 cells, and so far only one red iceburg lettuce has germinated, but many of my seeds are dated. I figure I am very early in the season (zone 4b), and I can take the time to get used to the system and see what works well.

I had asked a question on the webpage for the video on hardening off the plants before planting them outside. The question was not answered and actually disappeared. May have to seek the answer elsewhere. Maybe permies.com?