n/p mitch, do what you need to do for your plants :) I hope someone seasoned can tell you what to do from here :(

Playing Taps for these guys.

Is it possible that my issue could be excessive N?

http://www.haifa-group.com/knowledge_center/crop_guides/cucumber/plant_nutrient_functions/

I found another site that said to mix an Epsom salt solution and spray it directly on the foliage for Mg deficiency. I did that a few days ago but the plant continues to go downhill.