Bear with me, as I might have trouble explaining this. Easy one first. It is an amazon sword.
The browning is caused by the fact that most swords are grown emersed, and you can tell from the shape of the leaves, being more round and compact. It has to adjust being submerged, which during that time the emersed leaves will slowly die off as new ones come in. The new leaves will be more narrow and longer. One thing that will help it start the new leaves better is to put some root tabs under it, then add a new one every couple of months. It should grow into a beautiful plant.
This isn't a real clear picture, but you can see the swords on each side of my 75. I was just using 2 shop lights on the tank at the time.
