I also got a PM about this, but was unaware that the tank was still new and reading ammonia.
Anemones really need pristine/stable water parameters in order to survive. If ammonia is present, it's going to slowly kill the anemone. It is my belief that this anemone is a goner if it's in a new tank.
For future reference, anemones really should not be introduced into a tank until a minimum of 6 months of the tank up and running and stable conditions. New tanks, even with good readings, usually are not stable enough for an anemone to thrive. They also require high lighting (with the exception of a few, this particular specimen is one that needs high lighting), what type of lighting are you using?
Start running carbon, especially if you're going to play the "wait and see" game.