My temps range from 65-75 right now and my lettuce is doing great. This is the first time I've tried to grow it inside under fluorescent lights and if the harvest is as good as it is looking like it will be then I won't bother growing them outside ever again. The spinach isn't doing great but I think it's time for larger container for them. They are probably root bound. I'm potting them up right now as a matter of fact.

Thank you. Fantastic your harvest is looking good!

taz If you get the spinach to go let us know how you do it . My lettuce has always been good under the shop lights but my spinach is small and has leaf curl. I have hit 80 F under the lights but If the humidity is 35-40% range the greens still grow good and lettuce is not bitter (Buttercrunch,Romain,Royal Red Loose leaf), Pak Choi, Swiss Chard.

Curt