LOL, I just took that picture, it is from a messed up watering I did on Friday......I hadn't even posted about it in my thread yet...ha ha. I personally think my P is locked out because the ph was too high.....my red stems crept up to the top of the plants (into the veins on the leaves too)....So maybe yours is like you said and just hungry.
But the trichs I can't tell by those pics. ....are you seeing any amber yet? Bree