Something's going on.

Hello again RIU,

First grow, second problem.

I failed at transplanting the other day, and figured I would be paying for it right about now, and here it is! I am not sure, at first I thought it was a phosphorous deficiency, but now that I have CFL light on it, the color doesn't match. So I'm not really sure. I assume it's from the lack of root it's making up for (because I tore it out transplanting. Oops.), but I'm not sure exactly what it is. Anyone have any ideas?

I'm planted in FFOF, with a 400w HPS vented cool tube it resembles what I've seen to be is PH? But it's nutrientless Ocean Forest, so I'm skeptical. Could it just be shock?

looks like you let it dry up a little too long

What are you using for water? Looks like the new growth is okay? If it is don't worry about it too much could be just residual from the transplant. I see on here people think they have a problem and rush to a "solution" when in fact the "solution" is actually just adding another problem. Just saying.

Got some great growers on there though so we'll see what they say.

are you pH-ing the water before you feed/water? you can still have pH issues even without nutes...
the pH of the soil itself could be high or low.

I live in CO (thank the weed-gods), and the ph of our tap is 7.4, which I assumed was close to neutral to not cause any issues. So I can't imagine it's bad. I feel like it's just shock from the transplant. The damage has halted and the plant seems to be taking off in new growth again.

pH too high for some nutes. If you have a buffering agent in the soil..its lowering it and helping.