Struggling With Plants

Here is a picture:

I take it this is a low light tank? Sounds like a nutrient deficiency to me, you could try increasing the dose of fert, or getting some form of substrate fert like root tats.

BTW you sure you've got 1ppm Nitrite? You shouldn't have any in a mature tank, same goes for ammonia.

Sam

Actually on second look i have no nitrite, must have read it wrong. With the reflector il have about 2.4WPG.

That's one high nitrate reading you've got there! In planted tank terms you've got a very lightly planted tank so they are probably not taking up much in the way of nitrates. You'll have to up the water changes (although I'd also check the reading).
You say the lower shoots are struggling. By this I assume you mean that they are slow growing. This is a good sign that the light isn't getting to the deeper parts of the tank. The wpg that is talked about generally assumes that the reflectors are in place.
Holes in leaves and leaves falling off are good signs of deficiencies. Obviously it's not a nitrate deficiency though!

WK