
Rikbaktsa Corydoras
Hoplisoma rikbaktsa
- Care level
- Advanced
- Adult size
- 3.5–5 cm
- Minimum tank
- 60 litres
- Temperature
- 22–27 °C
Species profile
Brochis reticulata
Common names: Reticulated Corydoras, Reticulated Cory, Network Corydoras

Reticulated Corydoras is a peaceful South American callichthyid catfish recognised by a fine dark network pattern over a pale body, usually with a dark dorsal blotch. It should be kept in a same-species group over fine sand in clean, oxygen-rich freshwater.
The pale body is covered by a dark network of lines, usually accompanied by a strong dark blotch in the dorsal fin. Its deep, sturdy build separates it from smaller spotted corys with similar markings.
Identify this profile by the combination of a fine dark network pattern over a pale body, usually with a dark dorsal blotch. Older sources commonly list this fish as Corydoras reticulatus; the current profile follows the accepted or revised placement Brochis reticulata. 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.
Reliable external differences are limited. Mature females generally become larger and noticeably broader through the abdomen, while males remain slimmer, but juveniles are difficult to sex confidently.
Provide a spacious bottom footprint, smooth sand, shaded retreats and open areas for group foraging. Stable water, good oxygenation and regular substrate maintenance are important because food and waste collect in its feeding zone.
This is a peaceful, social and fairly robust bottom dweller. It spends much of its time searching the substrate and becomes more settled when kept with several of its own kind.
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.
It suits communities of peaceful, similarly sized fish that do not monopolise bottom foods. Avoid aggressive cichlids, territorial catfish and cramped tanks where a sturdy group cannot forage comfortably.
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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 to moderately hard, slightly acidic to neutral water is suitable. Provide good oxygenation and keep ammonia and nitrite at zero.
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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.
Use varied sinking foods, including quality pellets, tablets and frozen or live invertebrate foods. Do not rely on leftovers, and distribute food across the bottom so every fish can feed.
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.
Breeding follows the familiar cory pattern and has been achieved in aquariums. Well-conditioned adults attach adhesive eggs to glass, plants or spawning material, after which the eggs should be protected because the adults provide no care.
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