New member here!

Arugula is exhibiting interveinal chlorosis, while no other plants are showing much of a deficiency of anything. I'm thinking I need more Mg or Fe, but I haven't found any evidence that it needs more than any of the other varieties in the system and would rather not add it if it's not the problem here.

I'm growing varieties of lettuce, spinach, kale, chard, and arugula in a larger seedling bench system, running ebb and flow. Using General Hydroponics MaxiGro for the whole system.

Does anybody have a similar experience or know why Arugula may be more finicky than other plants in my system?