Zinc deficiency?

Well it seems to me that both plants have zinc deficiency, not going well for these two compared to my other three thriving! White Russian and White Rhino. Is this a zinc deficiency? Help please!

Looks like your PH is fubar, there should be no deficiencies at this young stage.

Right, the pH is well in the range of 5.8-6.4? What would you suggest I do.