whats wrong with my plants?

4th week at 12/12 can any one comment on how healthy this plant is and does anyone know what the yellowing on the new growth is I also have red stems leading up to the leaf on a few the larger opicture shows bud growing on leaf stem just looking for some advice
PH = 6.8
Light = 85watt tite on space at the moment

Why are you hijacking this thread? Start your own. WTF?