Dr. Paddy Ryan, USA
Info
Amblyeleotris gymnocephala (Bleeker, 1853)
Occurs in coastal sand slopes. Found in mangroves and bays. Partner Shrimps: Alpheus ochrostiatus and Alpheus djeddensis
Sex and mating
There are no known visual differences between the sexes in this genus.
Furthermore, the sex of this species is determined after hatching and cannot be changed (gonochoric). The sex develops during spawning and is determined by the water temperature.
Jumping guard
A jumping guard prevents (nocturnal) fish from jumping out.
Wrasses, blennies, hawkfishs and gobies jump out of an unprotected tank in fright if their night rest is disturbed, unfortunately these jumpers are found dried up in the morning on carpets, glass edges or later behind the tank.
https://www.korallenriff.de/en/article/1925_5_Jump_Protection_Solutions_for_Fish_in_the_Aquarium__5_Net_Covers.html
A small night light also helps, as it provides the fish with a means of orientation in the dark!
Synonymised names
Cryptocentrus gymnocephalus (Bleeker, 1853) · unaccepted
Gobius gymnocephalus Bleeker, 1853 · unaccepted
Occurs in coastal sand slopes. Found in mangroves and bays. Partner Shrimps: Alpheus ochrostiatus and Alpheus djeddensis
Sex and mating
There are no known visual differences between the sexes in this genus.
Furthermore, the sex of this species is determined after hatching and cannot be changed (gonochoric). The sex develops during spawning and is determined by the water temperature.
Jumping guard
A jumping guard prevents (nocturnal) fish from jumping out.
Wrasses, blennies, hawkfishs and gobies jump out of an unprotected tank in fright if their night rest is disturbed, unfortunately these jumpers are found dried up in the morning on carpets, glass edges or later behind the tank.
https://www.korallenriff.de/en/article/1925_5_Jump_Protection_Solutions_for_Fish_in_the_Aquarium__5_Net_Covers.html
A small night light also helps, as it provides the fish with a means of orientation in the dark!
Synonymised names
Cryptocentrus gymnocephalus (Bleeker, 1853) · unaccepted
Gobius gymnocephalus Bleeker, 1853 · unaccepted
