Leaves continuing to yellow... Grr!

I transplanted my plants from 5oz to some 24oz clear cups where they should be good for a while. They are also now in FF Ocean Forest with a good amount of perlite! They have not been fed in some time, and were watered last week (and then I transplanted). They otherwise look healthy, but now they are starting to look like tie dye!

Could it be a Nitrogen deficiency? Or even worse, Nitrogen toxicity?

Soil: FF Ocean Forest
PH: 6.5
Nutes: FF Grow Big (but not recently)

http://i25.tinypic.com/o0sz90.jpg

http://i26.tinypic.com/mcrrq8.jpg

This one is not nearly as bad... Maybe hungry?

http://i27.tinypic.com/104hr8i.jpg

http://i30.tinypic.com/25gts28.jpg

I'm still learning with deficiencies so i don't know much, but I would rule out N toxicity however. It doesn't look like that at all

Cool, we're all in this together! :] Thanks for your input man.

How often are you watering them?

What kind of lights/ grow method are you using ?

Have they been in and sunlight lately? If so how bad is the UV lately?

How has your temps been?

clear cups no good.

have you checked PH level?
no nutes yet right?

@Dyranty: Watering every 5-7 days. No grow method, just in cups outside. And yes they are in the sun all day.

@blink_inc Why are clear cups bad? The PH is 6.5, only fed with nutes once. Won't do it again for a while.

Clear cups= light to the root zone, which is not designed to be exposed to light. Outdoors, where plants are in sun, it's even LESS desirable. DEfinitely move them to opaque pots, or cover those with tinfoil. Also make sure they drain very well.

You should start feeding soon at 1/4 strength grow nutes, and aim for your runoff pH to be 6.7. Also, make sure that they are getting enough water. Weekly for plants in full sun may not be enough.

Dang, will transplanting them again cause more stress? Could I just spray paint the cups black instead?

Couldn't you just stick those cups into colored cups? or perhaps just cut them and drop them in other cups? Or do like stinky said, wrap some foil around all them.

Don't forget the new drainage holes either way!