The Black-Lined Loach is relatively new to the aquarium hobby, being first described as a separate species in 1987. This loach has two dark stripes, one running along the side from its nose to its tail and another close to the top of its body. Its background color is lighter below the middle stripe and a darker golden tone above.

Some reports say that chain type markings (darker vertical markings between the two stripes) can show up on this fish when it reaches about 1 3/4" in length, (though some reports say the Black-Lined Loach never has vertical markings). This chain type marking is common on its close relative the Dwarf Loach. Neither of these two loaches have vertical markings once they mature, but the Black-Lined Loach is distinguished by having two horizontal stripes on each side while the Dwarf Loach has only one.

The Black-Lined Loach is a very active yet peaceful fish, A small group of these loaches will make an attractive addition to a community aquarium. They enjoy the company of their own species and will do best in a group of five to seven, three is the suggested minimum to keep.