My tiger pistol shrimp (m/f pair) and Wheeler's goby found each other with no problem. I originally introduced the Wheeler's to the same corner that the shrimp were in . . . and he promptly went and sat on a rock on the other side of the tank for two days by himself. I didn't know what to do, so I just left him there, and by the third morning he'd found them and was happily watching them digdigdigdig.
The funny thing is, when I was doing my tank switch 3 weekends ago, I managed to catch all the fish . . . and I accidentally released the Wheeler's back into the tank AFTER I'd set up all the rock-work again. (Don't ask, and boy was I p****d.) Within 5 minutes, he was paired up with the pistol shrimp again (and this is in a completely new tank and rock set-up) and giving me the proverbial fishy finger from his newly created lair. (I did end up catching him again, after moving half my rock around for a second time.)
Now, with the main tank lying fallow and the goby being treated, I still see my pistols all the time. In fact, they're tame enough to take little pieces of krill from my forceps. I highly recommend a goby if you want to see your pistol more often. There are at least 5 different species that are commonly imported that quickly pair up with pistols, from what I understand.
On a final note, when I moved my tank I had pretty much lost my female pistol. She was hiding in one of the rocks, and I didn't see her from the time I started taking out rock until 3 days after the new tank was set up. They're pretty hardy little buggers!
PS- as far as feeding goes, I leave little bits of krill or shrimp pellets by their lair every once in a while, but I'm pretty sure they also eat my amphipods and mysis that I have roaming around. I don't believe mine are really picky eaters. Also, I squirt mysis or brine into their lairs when I'm spot feeding my candycanes.
