Attack of the Blue Linckia

[Fragmented 99]

Always heard these stars were reef safe and so far I've had good luck. But for the past day or so the linckia was drapped over a large Chili coral added to the tank a few weeks ago. Tonite I noticed it had moved and when looking over the tank I noticed the chili coral was missing a significant amount of tissue where the star had been (about 1or 2 millimeters of a 1"X1" section).
From what I have read, it is unknown what Linckia's feed on. Could they feed on Chili corals or was it taking advantage of dying tissue on the Chili? I noticed this just before the tank lights went out so I will post some pics tomorrow.

Any thoughts? ......

[onegreenray]

chilis i thought where very hard corals to keep? it may have just been doing the later, eating the dying coral. the one i had survived for years on scavenging on things in the tank, main food being detrius i think.