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Pinning down the species from that photo is not easy. The fins are not discernable, nor the head. It is a goby I think we all agree, but which one...?
The most commonly-imported species are two very similar, Rhinogobius candidianus and R. cf. nantaiensis. These are not normal "community" fish, so they need a tank set up to provide for their specific requirements. And tankmates must obviously be well selected to match.
Here is some info on the first species mentioned.
Rhinogobius candidianus (Ctenogobius candidianus, Rhinogobius taiwanus) — Seriously Fish
Byron.
The most commonly-imported species are two very similar, Rhinogobius candidianus and R. cf. nantaiensis. These are not normal "community" fish, so they need a tank set up to provide for their specific requirements. And tankmates must obviously be well selected to match.
Here is some info on the first species mentioned.
Rhinogobius candidianus (Ctenogobius candidianus, Rhinogobius taiwanus) — Seriously Fish
Byron.