Acantopsis octoactinotos, the long-nosed loach, is a freshwater fish from Indonesia, commonly found in aquariums.

[2] Acantopsis octoactinotos has a long straight snout, unlike the similar Horseface loach (Acantopsis choirorhynchus), in which the snout has a down-turned shape.

[2] The long-nosed loach reaches 4.5 inches (110 mm) in length, males typically being smaller and slenderer than females.

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