and if it is acting ok for now, in that tank size and lighting it wont be happy for long, sorry to be ruff but I feel sorry for your anemone, not a good situation to put it in, Also its not wise to just go out and purchase an anemone and not know what kind it is, having an anemone is alot of work and a huge responsibility, it is up to you to know what you are doing and to give it the best life possible and not make it suffer