We received again this pretty freshwater goby from Taiwan. The determination of the numerous species of Rhinogobius is often very difficult (see also http://www.aquariumglaser.de/en/rhinogobius-rubromaculatus_en_1637.html). R. formosanus is a pleasant exception of that rule, for it differs from all species of Rhinogiobius from Taiwan by the unique red coloration of the face. Taiwan was formerly known under the name of Formosa, this is why the species bears its specific name. Males and females look quite similar in R. formosanus, but the males have longer skulls and a differently marked dorsal fin.
This species of Rhinogobius becomes about 8 cm long. One should keep the fish at room temperatures (16-22°C) in a tank that is furnished like a brook, eg sandy bottom and larger, rounded stones. Regarding food this species is completely undemanding and readily accepts all types of usual food for ornamental fish. However, one should be careful with worms, like Tubifex, for that food is very fatty and in the wild Rhinogobius have only very nutrient-poor food available. So worms should not be given very often.
For our customers: the animals have code 453463 on our stocklist. Please note that we exclusively supply the wholesale trade.
Lexicon: Rhinogobius: means “goby with a nose”. formosanus: means “originating from Formosa”.
Suggestion of a common name: Formosa brook goby
Text & photos: Frank Schäfer
|Angaben zum Tier|
|Verfügbare Größe in cm||4-6|