[6] Habitat deterioration, specifically agriculture, deforestation, pollution, and other ecosystem modifiers, is a possible hazard for these fishes.

[7] Fishes of the genus Opsarius can be found in inland freshwaters such as streams, rivers, creeks, and waterfalls.

Generally, these water bodies will have sandy or rocky bottoms which is the preferred benthic environment for these fishes.

[6] The first evidence of Opsarius in scientific literature can be found in the book Indian Cyprinidae published in 1839 by John McCleland.

Additionally, Opsarius species will have a slender body usually marked by transverse blue stripes or spots.

[15] Opsarius is the kind of fish mentioned in the gospel of John at the miracle of feeding a multitude.