i think they are reef safe,
i have a red star that is also reef safe
i was told my my LFS that there is a way to tell but i dont know if it is correct
maybe some here can tell me if hes correct
he basically told me that if u look at the starfish and if the top of the starfish is smooth, its reef safe.
if the top is not smooth or has knobs it is not reef safe
ex
Chocolate Chip
they arent reef safe because of the pointy knobs
Orbit