I was at my lfs and saw a hi-fin banded goby that was paired up with a pistol shrimp. The little shrimp was tending his burrow and the goby was perched out front. I would LOVE to add the pair to my 20gal tank, does anyone have any experience with this? Do they always pair up or is possible to get one of each and have them ignore each other? It would be housed with an ocellaris clown and a 6 line wrasse someday, but currently I have no fish and would like the goby/shrimp combo to be the first fish in the tank. I also have a peppermint shrimp but the lfs said they aren't aggressive.

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30 gallon freshwater: 1 crowntail betta, 5 neon tetras
60 gallon hex saltwater: 1 banded brittle star, 1 peppermint shrimp, 2 hermit crabs, 1 turbo snail, 1 yellow watchman goby paired with a candy stripe pistol shrimp, 2 ocellaris clown fish. Bubble tip anemone, frogspawn, fungia, clove polyp.

Yup, thats the way to do it if your planning of the a HiFin, get them paired up. The relatioinship is kinda like the Clown Fish and the Anemone.
Saltwater Aquarium Fish for Marine Aquariums: Hi Fin Red Banded Goby

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So If I want them paired up, I should buy them already paired up. Makes sense I'm giving my tank a week or so since I just got a starfish and shrimp, but hopefully this duo will be the next inhabitants.

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30 gallon freshwater: 1 crowntail betta, 5 neon tetras
60 gallon hex saltwater: 1 banded brittle star, 1 peppermint shrimp, 2 hermit crabs, 1 turbo snail, 1 yellow watchman goby paired with a candy stripe pistol shrimp, 2 ocellaris clown fish. Bubble tip anemone, frogspawn, fungia, clove polyp.

You don't have to buy them paired up, but most LFS sell em that way. Easier to get them that way too.

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