looking great. I had the same issue with stargrass, it would branch out and grow bushy but the growth was 2 fast. If i didnt trim the bush the center/lower part of the plant would turn pale, and if i did trim it, some leaves would turn pale/black. I switched out this delicate plant for other bushy stem plants.
I also had the red nesea in my tank for a while and it didnt really grow as i expected. Im sure you will get a nice trade for some other interesting plants on the SNS.