could be either from the pic Majano's have a bulbous tentacles aptasia is also called the glass anemone and have long slender tentacles both are very common on LR. Majano anemone are a bit harder to get ride of as far as using chemicals to do the job. Because not all that work on Aptasia anemone will work on Majano anemone, joeys juice works well on both as it melts them but peppermint shrimp work the best and some wrasses have been reported to eat them also.

Bill