For a first planted tank, going low tech would probably be best. As the previous poster brought up, if that is mondo grass, it will just slowly rot away. If you like the look of it, replace it with sags or vals, and maybe an Amazon sword. Since it's a tall tank, some floating plants would fill out the overall appearance. Get a 6500K tube for lighting and fertilize with Flourish Comprehensive once or twice a week. Since most of the volume is taken up in depth, stock more lightly than is normally suggested per gallon. Surface area plays a big part in stocking also. Could you provide the dimensions of the tank in width x length x height ?