fwiw: My experience with captive specimens does not support the "versions" theory, but differing enviromental conditions triggering divisions; or not.<a href=showthread.php?s=&postid=7679295#post7679295 target=_blank>Originally posted</a> by travisurfer
there are two main types of e. quadricolor according to fautin and allen? anyway, there is a colonial version that tends to stay smaller and split. they live in shallower waters. then there is the deep water specimen that lives solitarily and grows to a much larger size. i beleive those reproduce by external fertilization.
If someone can find a research paper or journal supporting the two different "versions" of E. quadricolor, please link it. Something like this study on H. magnifica would be nice:
http://www.environmental-expert.com/resulteacharticle4.asp?codi=5188