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Every species is checked against your display tank before it goes in the water.
How this works →How we check: each species' minimum tank size against your display volume, plus quantities and behaviour pairings between tankmates.


Filamented Dartfish
Also sold as the Blue Hana Goby, the Filamented Dartfish is a metallic blue-green hoverer named for the male's elongated tail filaments, regularly imported and prized for its constant mid-water display above the sandbed. It often shelters in burrows dug by alpheid pistol shrimp, but the bond is opportunistic rather than a true partnership — it doesn't communicate with the shrimp the way a dedicated shrimp-goby does, and may simply be sharing a hole. Peaceful and reef safeWon't harm corals or invertebrates, so it's safe to keep in a reef tank rather than a fish-only setup., but a committed jumper that unsettles in anything but a mature, well-lidded tank; best added as an established pair.
Care & compatibility guidance only — confirm this fish’s needs and temperament with your supplier before you buy. Disclaimer
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