I think this one is small enough that it can't eat my fish. I think. I hope. I figure my Twin Spot is at greatest risk, but if he covers the plate in sand maybe he deserves it.
I just dosed the tank with Pohl's Coral Vitalizer, and then fed the tank ArctiPods. I saw some slight puffiness in the plate, but it was barely noticeable. I'll feed it some mysis in a little while.