It originates in calmer water pool areas of highland streams in the lower Ganges and Brahmaputra basins in Bangladesh and north India.

[3] B. rostrata can reach a length of up to 11–12 cm (4.3–4.7 in).

[3] It needs to be in a group of five or more to create a pecking order and is never seen when kept singly.

During fighting or feeding time a larger specimen of this fish may be seen graying out (darkening in body) as a dominance behavior.

It likes having plenty of hiding spots and crannies to cram into, so rocks and wood are needed.