Chalice feeding?

I know this may sound strange... but I have never seen a chalice eat before... I have had a frag of watermellon in my tank for a couple of weeks and this morning I saw it eating... very cool!
 
most eyes will open up and extend tentacles to feed regularly, i know mine do so every night. all corals feed in one way or another, light is only part of what they need to truly do well.
 
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