This article does not help. And why I often hate articles. Never been updated from what I know.
Have you ever wondered what that itsy bitsy starfish is doing in your tank? The sneaky starfish probably hitchhiked its way in on some live rock or new coral, but now there are dozens of small grayish…
reefbuilders.com
"The
Asterina starfish is seen as more of an
aquarium pest than a pet, and although most species of
Asterina can coexist in your tank without killing your corals, it can be difficult to tell which species of
Asterina you’ve inherited.