<a href=showthread.php?s=&postid=10105826#post10105826 target=_blank>Originally posted</a> by phender
Wow! That is an interesting picture. Just looking at the tentacles, my first thought was green tipped H. crispa, but then I scrolled over to the base!. Unless the base is dyed or Photoshopped, the color rules out H. crispa.
It doesn't seem to be attached to anything, which is odd and not a good sign as far as health goes.
It could be either a BTA or H. magnifica. If it has vertical rows of spots just a little darker than the base on the column just under the tentacles, then it is magnifica. If there are no spots then it is likely a BTA (E. quadricolor).
From what I can see of the tentacles and the column, my best guess would be a BTA. In either case, it is a little bleached, a lot if its a BTA, a little if magnifica. In both cases I would be concerned if indeed it is not attached to anything.