Nemacheilus masyae or the "arrow loach", can be found in a freshwater environment within a benthopelagic depth habitat.

The body of this species is a light colour with dark splotches that can be found on its side.

They prefer a slow current of clear to slightly turbid water, with a muddy or sandy bottom.

[3] The specific name honours the scientific illustrator Luang Masya Chitrakarn, also known as Prasop Teeranunt (1896–1965), for his interest and zeal in the study of Thai fishes.

[7] The diet of Nemacheilus masyae consists of frozen food like Daphnia, Artemia, and bloodworm that will result in the best colouration and condition.