yes actually with varying success....
I think you get your chances a little higher for them to become symbiotic by dripping them into your tank together and taking them home from your lfs in the same bag but I have bought "pairs" at the store, only to come home and have them have nothing to do with one another, I have added a blackray shrimp goby to a tank and have it immediately find the pistol burrow and be inseperable from there...
Your best bet though is to go to the lfs and buy a pair that are already hanging out, you might have to watch the tank for a little while, but if you really want a symbiotic pair, it's the best way but hardly a guarantee.
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