Need help with tomato problem

[hoek59]

I need help figuring what or how to correct a problem with two of my hydroponic tomato plants. I started these plants in my basement greenhouse setup using a 600w light, humidity of 68%, night temp of 65 deg. F., day temp of 74 deg. F., a box fan provides good air movement and the plants are set in a Grodan block. All other tomato plants are doing fine. Please see photo's. I have spent hours searching the web for possible symptoms and the only thing I can come up with is a possible edema issue. Any help will be appreciated.