So i bought a ruby red from awuatic arts on friday, drip acclimated for 2 hours, put him in my display in a little cave area where I could see him. He hung out there for a total of 48 hours and I saw him foraging and picking, now he has been missing since Sunday afternoon. I can't find a body, never saw a migration of nass snails, or any other sign of death inside or outside of the tank. Nothing in the overflow or sump. Whats the likelihood of the little guy still being alive? He is in there with a juvie scribbled rabbitfish, two clowns and a solar fairy wrasse. I turn the lights off and darken the room when adding and as far as I know, no one even noticed a new fish was in the tank. Thoughts?