This is a problem I deal with every time I try cucumbers in Kratky method. I’ve seen others have success growing cukes in this method so I keep on trying! I have it growing inside my grow tent - Diva variety . I changed nutrients to a mature blooming stage blend and added calcium mag. Not sure if lighting, humidity or temperature are an issue. My Kratky tomatoes seem happy

I’m going to try some Kratky jars for fun. What nutrients would work best for lettuce and herbs, and how much per gallon of water? Any other suggestions? I’m going to do a demo for my gardening class (hence the portable sized jars) at the end of the month, so I want to get some started.