Questions about my new plants

[waterwatereverywhere]

This is my first proper go at a planted tank. I ordered my plants mail order and they went in last Friday. I've just got a few questions.

Most of them seem to have settled well. My Barttii swords in particular have got some nice new red leaves. Some of the leaves show some browning, should I take them off?

I've been putting CO2 in for a week using the Carbo Plus unit. My kH is around 3-4 degrees, but my pH is staying stubbornly at around 7.2. Is this too early for it to be having much of an effect on pH? I do have a sump, maybe I've still got too much water movement and the CO2 is gassing off?

This is a some of my Echinodorus tenellus. Are these roots waving around, and if so should I snip them off and plant them?

 

[waterwatereverywhere]

And finally, is this a flower bud on some more of my Echinodurus tenellus? (You have to look closely at this one!!)

 

[waterwatereverywhere]

And here's one of those new red leaves at the bottom of the plant in the foreground. Behind is an ozelot sword. This isn't a very good photo, I want to get some better pics but the water's been cloudy and is only just clearing now.

 

[Dubby]

This is a some of my Echinodorus tenellus. Are these roots waving around, and if so should I snip them off and plant them?

Those look like new plants that have been growing off runners. Just plant them in without cutting the connection to the mother plant.