I am sure that, just like the devil, asterina starfish fulfill a purpose and a function designed by our Creator! I expect that one purpose might be to give us a picture of the insidious way that the enemy of our souls works his evil against us, when given an opportunity! (If at any time, by the way, I have ever implied that they were harmless, either the devil or asterinas, I hereby retract that implication!) I have just now observed these asterinas plastering themselves on top of zoanthid polyps, and tucking themselves up into zoanthid colonies where there is no algae to speak of, but rather zoanthid tissue that would like to spread, and form other polyps! Under the cover of their inherent cuteness, which is added to by their interesting behavior of readily splitting in to various shapes, they have infiltrated my aquarium while receiving my happy approval. They have been eating my coral, and I have been duped! I know now that they are as sneaky as sin, and they will meet with my undivided commitment toward their complete eradication! ASTERINA STARFISH ARE THE DEVIL, and at some point in the near future, they will be no more!