Yasha Goby and Red Banded Pistol Shrimp

Last night when I was feeding my fish, I was shocked to see that my Yasha goby has a friend! Kenobie, my Yasha goby, has been alone for over two years now. About a year ago, I bought her an unidentified green pistol shrimp from my LFS; I later ID'd it as Alpheus ochrostriatus. They completely ignored one another. So in February, I got a Wheeler's goby for the pistol shrimp. Kenobie was still all alone, except for her peppermint shrimp friends. In February I bought her an Alpheus randalli, red banded pistol shrimp, which is the pistol shrimp that Yasha gobies are commensal with in the wild. I heard a lot of pistol shrimp popping and shooting, and didn't see the red banded pistol shrimp after that at all. I thought for sure it was killed by the much larger green pistol shrimp. But all is well, and my Yasha has a new pistol shrimp friend!