Home›Where they come from›TigusaRiverTigusaOne profile names the Tigusa. That is what has been written, not what lives there.Species1Families1Photographed1 of 1Difficulty rated1 of 1That fish is also recorded fromHidakaIbanaIboInaKakoKumozuMaruyamaMizukoeRhinogobius flumineusGobiidae · Mizuno, 1960Max length60mm SL2.4in SLTank75 × 30cm30 × 12inTemp18–25°C64–77°FpH6.0–8.0In addition, there appear to exist two colour forms based on male dorsal-fin morphology and patterning; one in which the 4th ray of the first dorsal-fin is longest with a square bluish-black blotch on the anterior ⅔ of the fin, and a second in which the 2nd and 3rd rays of the first dorsal-fin are longest with the fin itself paler and lacking dark markings.Moderate
