I have a nice little colony in a low flow low light area that I have had for almost a year. I just feed my whole tank once a week it has grown a little but it grows slow at least for me.
It likes low to medium light with low flow. Feed it and it will grow!! I have sprinkled pellet food, mysis, pieces of shrimp, flake food, and anything else that my tank will eat on it and it eats it up.