Taxonomy & naming
Paraschistura bampurensis was described by the Russian ichthyologist Aleksandr Mikhailovich Nikolskii in 1900, which is why the authority is given in parentheses — the species has since been moved out of whatever genus Nikolskii originally placed it in. Older literature and some database records still refer to it under the genus Nemacheilus, or under Schistura, reflecting the long and still-unsettled history of splitting that once-catch-all genus into the modern stone-loach genera. The Catalog of Fishes, the standing authority for valid names, places it in Paraschistura, a genus erected for a group of Middle Eastern and Central Asian nemacheilids distinguished from Schistura on anatomical grounds.
It belongs to the family Nemacheilidae, the stone or brook loaches — by far the largest family of true loaches, with well over a thousand described species spread from the Balkans to Southeast Asia. Nemacheilids are typically small, slender-to-stout benthic fish of running water, and Paraschistura bampurensis is a fairly ordinary example of the group: a regional stream specialist that has drawn little dedicated study. The name Schistura baluchiorum is treated as a synonym of this species in Eschmeyer's Catalog of Fishes.
Morphology
This is a small loach, reaching a documented maximum of about 2.5 in total length — modest even by the standards of the stone loaches. Like other nemacheilids it has an elongate, only lightly compressed body suited to holding position against current, a subterminal mouth adapted for picking food from the streambed, and short barbels around the mouth for sensing prey in the substrate. The skin is effectively naked to the eye, carrying the tiny, deeply embedded scales typical of the family rather than large, visible ones — a feature that, as in other loaches, makes the fish more porous to medications and chemical stress than a typically-scaled species.
Detailed morphological description beyond what FishBase records is sparse for this species, and no aquarium photography or hobbyist account was found in the sources consulted for this profile; readers should treat fine details of colour pattern and fin shape as provisional pending better documentation.
Habitat
Paraschistura bampurensis is native to southeastern Iran and adjacent Pakistan, in drainages feeding the Persian Gulf and the Gulf of Oman — the Bampur River, from which it takes its common name, is the type locality region. FishBase classifies it as a benthopelagic, subtropical freshwater fish, consistent with the stream habitats typical of Nemacheilidae: fast-flowing, clear, well-oxygenated water running over gravel, sand and stone.
Exact temperature and pH data for this species were not found in the available sources, which is a common gap for regional nemacheilids that fall outside the aquarium trade. Given its subtropical, running-water range, it should be treated as a fish of cool-to-warm, well-aerated stream conditions rather than a warm, still blackwater species — a distinction that matters for anyone attempting to keep or study it.
Feeding
FishBase records a trophic level of 2.8±0.3 for this species, placing it as a micro-predator of small invertebrates rather than an algae grazer or general omnivore. In the wild it almost certainly forages over the streambed for insect larvae and small aquatic invertebrates, in keeping with the feeding habits documented across Nemacheilidae generally.
No aquarium feeding record was found for Paraschistura bampurensis specifically. Based on its trophic ecology, a keeper should expect it to favour small live and frozen invertebrate foods — bloodworm, small crustaceans and similar sinking fare — over flake, and may be reluctant to take dry foods at the water surface.
Mating
No description of courtship, sexual dimorphism or spawning behaviour for Paraschistura bampurensis was found in the sources consulted, including FishBase, which lists no breeding information for the species. This is a common and honest gap for regional Middle Eastern stone loaches that have never entered the aquarium trade and have been studied mainly for taxonomy and population genetics rather than reproductive biology.
What can be said is inferred from the wider family: nemacheilid stone loaches typically show little external sexual dimorphism and reproduce as unpaired egg-scatterers rather than forming bonded pairs, so any mating behaviour in this species likely follows that pattern rather than the courtship or guarding behaviour seen in unrelated fish groups.
Breeding
There is no confirmed breeding record for Paraschistura bampurensis in captivity, and the species is not part of the aquarium trade. By family pattern, stone and brook loaches such as this one are egg-scatterers: ripe adults release eggs over gravel and among stones in fast-flowing water, with no nest-building, pairing display, or parental care of eggs or fry.
Data on this species specifically is sparse enough that even the egg-scattering mode should be read as inferred from Nemacheilidae generally rather than directly observed in Paraschistura bampurensis. It should not be assumed to guard a cave or brood its young in the mouth — those are behaviours of unrelated fish groups, not stone loaches — and anyone encountering the species should treat it as effectively unbred and undocumented in the hobby.
In the aquarium
Paraschistura bampurensis is not established in the aquarium hobby, and no husbandry account was found among the sources reviewed. Any care advice here is therefore extrapolated cautiously from its biology and from the wider stone-loach family rather than drawn from direct experience with the species.
Given its small size (around 2.5 in), micro-predatory diet and origin in fast, clear, well-oxygenated subtropical streams, a keeper attempting this species should provide strong water movement, high dissolved oxygen, a fine gravel or sand substrate, and small live or frozen invertebrate foods rather than flake. As with other near-scaleless loaches, medications should be dosed cautiously — full-strength treatments and copper-based products are more likely to stress a thin-skinned nemacheilid than a typically-scaled fish. This is best regarded as a fish for a specialist or researcher rather than a readily available community species.
Conservation
Paraschistura bampurensis is assessed by the IUCN Red List as Least Concern, with the assessment dated 30 August 2019. This reflects a species that, while restricted to a specific set of drainages in southeastern Iran and adjacent Pakistan, does not currently face documented threats severe enough to warrant a higher category.
The species is not part of the ornamental trade, so aquarium collection is not a relevant pressure. As with many regional stream endemics of arid and semi-arid Southwest Asia, the longer-term risks — where they exist — are more likely to come from water extraction, damming and habitat alteration in its home drainages than from any single documented cause, though no specific threat analysis for this species was found in the sources consulted.