Purple growers, I could use some advice

Got these purple dominate clones(as I was told) Kryptonite and Cherry Kush.

I'm gonna try to be thorough so I don't leave details out.

16 days ago I transplanted to these 8'' pots using the same soil and nutes as all prior grows. About 3-4 days after they've both been getting dark spots and turning lighter green on the older lower leaves and a couple dry dead tips all over the low & mid leaves. Followed by a few low leaves going almost white and some yellow, to then drop off the next day. The've been vegging for 2.5/3.5 weeks(I forget) and growth is good.

I've flushed 3 times since everything krept up, letting the soil dry for 3 days. I have only fed once for the 1st time since flushing 2 days ago. PH of soil if 6.4-6.5(don't have a tester for water ph...) Nutes are General Organics-Go Box and soil is Whitney Farms Unlce Malcoms 100% organic potting mix.

Pics 1-3 are the Kryptonite, 4-6 are CK

As directed from nutes, "light feeding" at 2tsp per gal, "heavy feeding" 4tsp. I had been using 2 tsp, but since the flushing I used 1tsp. Every other day I mist the top soil with a plain filtered water to keep the top from getting too dry.

Here's other close-ups