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I have probably a dozen hermits and an arrow crab and a few other crabs as well as shrimp. They all have been in there for years and don't even text each other. The pistol shrimp stay in their holes.
Thanks for sharing. I love those guys and have a mated pair of shrimp with my gobi. I "shoot" them some clam every day which keeps them happy and healthy. My gravel has a lot of rubble in it from being in the tank so many years so they have no problems making tunnels from one end of the 6'...