I noticed the light was only 17 inches from the canopy, and lowered the plants to 18". I'll probably lower them another inch, but I don't want them to stretch much. They are not bleaching.
I left the light on 100%, and followed MarsHydro recommendations. I get less stretch than when following Viparsectra's instructions.
I'm watering straight Jacks 321 now, Drain to waste. It works really well for growing in solo cups.
I like to do seed runs like this in solo cups to save space.
I can grow 24 photoperiods in solo cups, in this fridge, without light leaks.
I'm only using a fridge instead of a tent because I've been using it before tents were cheap, and popular.
I would definately use a tent these days. I also have a 2x2 tent with a marsHydro TS600 for small plants.
I'm turning the lights back down to 12/12 today.
So the light schedule for this run will be 12/12 the first week, so as not to stress the sprouts.
18+ hrs. the second week, so they don't stretch too much.
And 12/12 the third week, and thereafter, because just like autos, they should become true adults any day.