Is this N deficiency, or is it something else?

[warfrat73]

Thanks for the help guys, I feel reassured.

[warfrat73]

Well, i think that my theory about getting enough cal/mag by alternating my water has been proven incorrect. I'm reasonably sure that I've got some calcium deficiency going on. Brown orange spotting and generally crispiness. I picked up com cal/mag on Tuesday and watered with that. That topped plant is looking rough and not sowing signs of doing much, but the untopped one is looking better.