[7] The head is flattened between the eyes, and the cranial roof sits beneath the dorsal axial muscle.

[9] B. sabanus also shares very similar patterns of lateral-line sensory papillae with other Brachygobius species.

[10][11] It is commonly found in freshwater ecosystems, including intertidal rock pools or waters with aquatic grasses, where it can hide from predators.

[7] As for their swimming behavior, B. sabanus spends a substantial amount of time "perching" and/or "hopping" between spots.

[6] Additionally, Brachygobius sabanus is one of two goby species (out of eight that have been tested) that show a response to the chemical stimuli which are released when a conspecific is injured.

Upon detecting the stimuli, it will reduce movements such as feeding and foraging behaviors, in order to be less noticeable to predators.

[6][13] Extract from the skin of B. sabanus has also been used as a control in multiple studies to test these chemical stimuli abilities in other fishes.

This aspect of human use may be the reason this species was introduced into Singapore habitats, as there are many facilities for farming, importing, and exporting ornamental fish around the Sungei Buloh Wetland Reserve and the Kranji Reservoir.