Whats wrong with my plant, and whats growing in my tank.

Got these pics lastnight, when I noticed this odd stuff in my tank.

First up, the leaf on my sword.... why is it coloured like that? is this a defficency of some kind? can it be cured or prevented from happening to the rest of the plant?

Secondly, what is this stuff growing all over my tank, You can see it on the glass as the little flecks of white stuff, and up close it looks like a tiny tiny tiny string, that connects a "V" shaped piece of fuzz to stuff.

Its all over my plants and glass, and just blows around with the current(but remains stuck to whatever its growing on)

I know the pics are hard to see, but its even harder to get pictures of something thats less then 1/4", growing on a clear pane of glass.... it doesnt appear to be living creature... I would guess an algae of some kind.
its a little hard to see on the leaf of the sword, but i think its visible enough.

I did add more fish food to the filter for ammonia purposes.... but there are no ammonia readings in my tank... again im going to assume its because the plants are using what little ammo was available from the rotting food?

I havent tried cleaning the grass, but it doesnt seem like a lifeform thats anything other than a plant, such as an algae, it doesnt seem to exhibit any type of creature like motions.... just stuck to glass blowing around in the current. im sure it will wipe off.

well these flecks of things wipe off easily enough, except on the plants, I cant really push on the plants enough to cause them all to come off.

my plants dont look so well, a couple of them anyway... Id really like to know whats going on.

shag: the new leaves ive seen on the sword all seem to be green, only this one is red so far. it almost seems to be dying.... maybe the plants are eating themselves due to a lack of nutrients of some kind?

the iron reading comes up low.... as in 0.... and ive been feeding the plants sparsly with BA's plant food about 2x a week, and some flora24 at random.

as for this stuff on my glass, i dunno.... when i had my fish in my 50gal, this didnt happen... only seems to show up in this tank with the addition of plants.
perhaps my lights have been on too long, as they have been running for a good 18+ hours.

I have started turning them on/off for about 12 hours each day now... i still need to buy a bloody timer.