
Slant Bar Corydoras
Hoplisoma loxozonum
- Care level
- Intermediate
- Adult size
- 4–5.5 cm
- Minimum tank
- 75 litres
- Temperature
- 22–27 °C
Species profile
Hoplisoma granti
Common names: Skunk Corydoras, Grant's Corydoras, Skunk Cory

Skunk Corydoras is a peaceful South American callichthyid catfish recognised by a bold arched black stripe running from the head along the back toward the caudal peduncle. It should be kept in a same-species group over fine sand in clean, oxygen-rich freshwater.
The Skunk Cory has a pale grey, cream or greenish body crossed by a broad dark stripe that arches from the snout over the back toward the tail. The clean curved stripe is its main identifying feature.
Identify this profile by the combination of a bold arched black stripe running from the head along the back toward the caudal peduncle. Older sources commonly list this fish as Corydoras granti; the current profile follows the accepted or revised placement Hoplisoma granti. Colour alone can be unreliable in stressed, juvenile, or poorly conditioned fish, so body shape, snout length, fin pattern, and provenance should also be checked.
Mature females become broader and fuller-bodied when viewed from above, while males remain slimmer and may have more pointed fins. The black stripe itself does not reliably indicate sex.
Provide fine sand, shaded cover from wood or plants, open foraging space and well-oxygenated water. Stable conditions and regular maintenance are important, particularly for wild-caught specimens.
This is a peaceful, social cory that may be shy in small groups. With sufficient companions and calm dither fish, it becomes a more visible and active bottom forager.
Keep at least 6 of the same species or coded population, with 8 or more preferred where space permits. A mixed collection of single corys does not fully replace a proper same-species group.
It is not territorial. Males may briefly chase one another or follow females during courtship, but sustained aggression is unusual when the group has adequate floor space.
Keep it with peaceful small or medium community fish that do not harass it or monopolise sinking food. Avoid aggressive cichlids, territorial catfish and large predators.
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Xilong XL-803D canister filter – up to 100 LAn external-filter option for the moderate-flow setup described above. The seller lists a 400 L/h pump and an aquarium capacity of up to 100 litres.
Check the volume of your actual aquarium and the needs of its complete stocking. Use the flow control or spray bar to avoid a concentrated current. A larger tank or a species requiring strong river flow needs a different filter selection.
Cut-to-fit aquarium filter media padA cut-to-fit pad for compatible filter compartments. The listing describes a sheet approximately 16 by 12 inches; check the offered variant and the space inside your filter.
The seller description varies between five and eight layers, so confirm the actual sheet before ordering. Keep the filter manufacturer’s media arrangement and avoid obstructing the flow.
Xinyou ceramic filter rings – 300 gA biological-media option for a filter with a suitable media basket. This listing is a 300 g pack of ceramic rings.
Check the ring size and available basket space. Installing new media does not make a new aquarium instantly cycled, and these rings do not replace routine water-quality checks.
Soft, mildly acidic water best reflects the natural habitat and usually gives the most reliable breeding results. Stable clean water is more important than forcing an exact pH.
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Manual aquarium siphon and gravel cleanerA manual siphon for routine aquarium water changes and accessible waste removal. The seller lists a hose approximately 1.6 m long.
Control the flow and keep the intake clear of fish and delicate planting. Clean the areas appropriate for your substrate and layout rather than disturbing the entire planted bed.
Offer sinking pellets, tablets and granules together with varied frozen or live invertebrate foods. Feed deliberately and ensure all members of the group receive food.
Feed after faster surface and midwater fish have taken their share, and confirm that every individual reaches food. Use small portions once or twice daily, remove persistent leftovers, and vary prepared and frozen or live foods.
Captive breeding is possible but not as routine as with the common farmed corys. Well-conditioned adults use the typical cory spawning sequence and attach eggs to selected surfaces, after which the eggs require protection from the adults.
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