Thanks for sharing - I'm in a 7a zone. I've just been using a kelp meal and targeting a 5.8pH for my lettuce but took the system down for cooler times as they all started bolting.... I should have put them under some shade.....

There's a lot of obvious big-oil funded propaganda against electric cars being posted on Lemmy....

SERENITY NOW

So that's all 1 system? What type of nutrients do you use? I've only dabbled with lettuce since nutrient concerns and timing of them are minimal.
If you're growing fruiting plants when do you know to swap to bloom nutrients? Does that affect your lettuce since it's all the same system? How many seasons have you been doing this?

Yes please tell us about your setup! I've been dabbling with growing butter lettuce in an NFT system.