Could be!
Maybe all aiptasia are not the same.
From PetEducation.com:
The Curly-Cue Anemone, also known as Corkscrew Anemone, Curly Q Anemone, Curlique Anemone, and the Trumpet or Rock Anemone, is a member of the Aiptasiidae family. It is found in the Mediterranean and Eastern Atlantic Ocean, most commonly from Plymouth to the Gulf of Guinea. The body is opaque amber with yellowish-white spots. The tentacles turn brown to brown/violet as they extend away from the body, are translucent and have spots.
The Curly-Cue Anemone is normally found singly, but, in quiet, shallow water, it may reproduce by cross division and form colonies in the summer. Be sure to supply rock crevices and stone overhangs, as the Curly-Cue Anemone will do best living hidden in these areas.
The Curly-Cue Anemone is a carnivore, and will consume fish, mussels, and crustacean meat. Offer a high quality frozen carnivore preparation, as well as fresh, chopped fish. Iodine and trace elements should also be added to the aquarium for the Curly-Cue Anemone to thrive.