White with purple tips is not a bubble tip. It's a Condylactis anemone. Even so--you should not be keeping an anemone in a newly established tank. It needs a tank that is at least 6-12 monts old. Especially if it's a bleached bubble tip.
What kind of lighting do you have? I'd concentrate on getting more live rock. How large is the tank & how many lbs do you have in there now?
What kind of lighting do you have? I'd concentrate on getting more live rock. How large is the tank & how many lbs do you have in there now?