Wrestling halfbeak | 水產百科網

Whenfirstintroducedintotheaquarium,wrestlinghalfbeaksarenervousfishthattendtobetimid.Theymayswimfranticallyifsuddenlyfrightened,evencrashing ...

Species of fish

The wrestling halfbeak (Dermogenys pusilla) also known as Malayan halfbeak is a species of viviparous halfbeak native to the fresh and brackish waters of rivers and coastal regions in South-East Asia, in Singapore, Thailand, Indonesia, Thailand, Malaysia, Borneo and Sumatra.[2][3] It is a small, slender, livebearing fish, with the elongated lower jaw characteristic of its family. The colour of this species varies, depending on where the specimen is found.[4] It is the type species of the genus Dermogenys.[5]

Wrestling halfbeaks are surface-feeding fish and feed on a variety of small invertebrates including crustaceans and insect larvae, but especially mosquito larvae and flying insects that have fallen onto the surface of the water.[6] As with all halfbeaks, the upper jaw lifts upwards when the fish is opening its mouth. Wrestling...