Taxonomy & naming
Leporinus boehlkei was described by the Brazilian ichthyologist José Geraldo Garavello in 1988. It belongs to the family Anostomidae — the headstanders — within the order Characiformes, and to the large genus Leporinus, whose more than 90 valid species (per the Catalog of Fishes, Eschmeyer, California Academy of Sciences) are spread across Neotropical rivers from the Orinoco and Amazon south to the Paraná and the smaller coastal drainages of northeastern Brazil.
A 2018 molecular phylogenetics study in Frontiers in Genetics, working with specimens attributed to "Leporinus cf. friderici" from the Jaguaribe and São Francisco river systems, found L. boehlkei grouping closely with L. piau within the Jaguaribe basin material — evidence of the cryptic diversity that runs through this genus and a reminder that Leporinus taxonomy in northeastern Brazil is still being resolved. No FishBase account or IUCN assessment for L. boehlkei was located in available sources, so the species should be treated as poorly documented outside the primary taxonomic literature.
Morphology
Detailed morphometric data specific to Leporinus boehlkei is not available from the sources consulted for this profile. In general shape it should conform to the Leporinus body plan: an elongated, moderately compressed body, a small terminal-to-subterminal mouth suited to grazing rather than grabbing prey, and the dark longitudinal or vertical banding typical of many headstanders in this genus, though the exact pattern for this species is not confirmed here.
Exact adult size for L. boehlkei is not documented in the sources reviewed. Congeners commonly kept in the hobby, such as L. fasciatus and L. nijsseni, typically reach roughly 8–12 in, and it is reasonable to expect a broadly similar size class for L. boehlkei, but this figure should be treated as an inference from related species rather than a confirmed measurement — keepers and researchers should not assume it stays small.
Habitat
Leporinus boehlkei is known from northeastern Brazilian river systems, with molecular-study material associated with the Jaguaribe and São Francisco basins. These are seasonal, often warm lowland river systems distinct from the classic Amazon blackwater image; specific water chemistry data for L. boehlkei's native habitat was not found in available sources.
Like other river-dwelling Leporinus, it likely occupies flowing to moderately flowing water over rock, wood and sediment where algae and biofilm accumulate — the substrate it would graze in its head-down feeding posture — but this habitat description is extrapolated from the genus rather than confirmed for this species specifically.
Feeding
Leporinus species are characteristic aufwuchs grazers: they tip into a distinctive oblique, head-down posture to scrape algae and biofilm from wood, rock and leaf litter, supplementing this with small invertebrates and soft plant material. There is no species-specific dietary study for L. boehlkei in the sources reviewed, but this grazing strategy is well documented across the genus and is a safe basis for care.
In an aquarium setting, a diet built around this ecology would mean vegetable-forward foods — spirulina- or algae-based pellets and wafers, blanched vegetables — supplemented with occasional protein such as bloodworm or brine shrimp, following general practice for Leporinus rather than any species-specific published guidance.
Mating
No courtship or spawning behaviour specific to Leporinus boehlkei was found in available sources. Headstanders in this genus are not known for elaborate courtship displays or pair bonding in the way substrate-nesting cichlids or piranhas are; spawning across Leporinus and the closely related Anostomus is generally described as an unguarded event rather than a formal pairing ritual, but this has not been documented for L. boehlkei itself.
Breeding
Leporinus boehlkei has no documented aquarium or captive breeding record in the sources reviewed for this profile. Across the genus, headstanders are egg-scatterers with no parental care, and captive breeding is rare in the hobby — a handful of Leporinus and Anostomus species have been reported spawning in large aquaria, and some Leporinus are farmed commercially, but most species in this genus, likely including L. boehlkei, are not routinely bred at home. Prospective keepers should not expect this to be a species they can breed.
In the aquarium
Aquarium-specific information for Leporinus boehlkei was not found in any source consulted for this profile — there is no dedicated care guide, no aquarium-trade history, and no confirmed adult size to size a tank against. What can be said with reasonable confidence, based on the genus, is that Leporinus headstanders are active, algae-grazing fish that commonly outgrow small tanks and that several well-known species in the genus (L. fasciatus among them) have a reputation as nippy, territorial fin-nippers as they mature, particularly toward slow-moving or long-finned tankmates.
Given that reputation and the lack of confirmed data for this species, L. boehlkei should be approached cautiously: plan for a large, well-covered tank (likely 6 feet or more, by analogy with related species), keep an eye on compatibility with delicate tankmates, and treat any published "care sheet" for this exact species with skepticism unless it cites a real source, since none could be verified here.
Conservation
Leporinus boehlkei has not been assessed by the IUCN Red List, and its conservation status is best described as Not Evaluated. Its known range in the seasonal river systems of northeastern Brazil, including the Jaguaribe and São Francisco basins, places it in a region subject to damming, water abstraction and drought stress, all pressures documented for northeastern Brazilian freshwater fish more broadly, but no population trend or threat assessment specific to this species was found.
As with several range-restricted Leporinus described from a single river system or a small cluster of northeastern Brazilian drainages, the honest summary is that too little is published about L. boehlkei to characterise its conservation status with confidence; it should not be assumed either secure or threatened without a formal assessment.