My royal gramma has seemingly disappeared overnight. I’ve searched through all the live rock, looked in the filter, even checked the carpet around the tank lol, no luck. I’m starting to wonder if maybe something ate him? My only suspects are my small arrow crab (Bartholomew) and my red starfish (Ziggy). I have two anemone in the tank as well, but I feel like I would have noticed if they tried to eat my gramma. It’s just bizarre, any thoughts?