candy cane pistol

I ordered this wheelers goby from doctor reefs and it was supposed to be paired with a pistol shrimp. The pistol shrimp disappeared in the tank the second I put him in and the goby seems pretty skinny. Should I proactively do something?

Hey Guys so I am in a weird situation where I bought a yasha goby-candy cane pistol shrimp pair but I'm left with the decision if I want to put the candy cane pistol in the quarantine tank with the yasha or put the candy cane pistol in the actual reef tank and just separate the pair, would this...