asterina starfish harmful ?

[v80s]

I have noticed come asterina starfish in my tank and I am concerned that they may harm my corals. Is there need for concern?

 

[keckles]

Asterinas are said to be generally harmless except for their reproductive capabilites (which is more of a nuisance than anything). I have read a few reports of predatory possibilites (to more noticeable, desired inhabitants). But, because of the many more reports of being harmless I suspect it could be limited to a certain species, or group of species, rather than Asterinas as a whole. Similar to "bristleworms"/polychates and H. caranculata for example. They shouldn't be a problem.