Plant problems (with pics)

Hello guys & gals currently im on my second grow an kinda have some plant issues atm the stems on the fan leaves look purple an the new growth is a light green is that normal?
Also i just topped her 5 nod on 6/2/13 a couple days before she made 4 weeks.

6/2/13 topped:



2 day after topped:


1 Week after topped:

Some strains show purple stems with a deficiencies of P others K, but most Mg. Also some strains are purple =Þ~

I've had strains with purple stems and it didn't seem to bother them, new growth is usually light green but should darken up, if not it could be a sign of N deficiency.

I agree with both ^^ up there...what are you feeding her?

Almost looks like one of my first girls..she had purple stems also, but was healthy and produced well..

RIKNSTEIN said:

I agree with both ^^ up there...what are you feeding her?

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[h=3] Peters Professional® Soluble Plant Food 20-20-20 & MG Bloom Booster 15-30-15[/h][h=3]1/4 tsp & 1 gallon of water also feeding the every 7 days[/h]