I am searching for a good background plant for my 55 gal aquarium. I have micro sward and dwarf hairgrass in the foreground. I am looking for something that is fairly low maintenance and colorful (orange, red, or pink). I have 160 watt's of lighting, dirt, sand, and florite substrate. I was looking at Rotala wallichii but most of what i have read claims it's a difficult plant to care for. Any advise would be great!