Assertion: red serpent star | /r/CapableOf | stand on two arms
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text: I had a very large red serpent star, Ophioderma squamosissimus, that would smell fish food I put in one of my non-reef tanks and would immediately come out from underneath the (dead) coral head it called home, stand on two arms, and prop itself up on the front pane of the tank waving the rest of its arms for food.