Schwartz Cory Care Guide - Aquarium Setup, Diet & Breeding

The Schwartz Cory is a small, attractive armoured catfish with a pale silver-beige body, dark markings and a distinctive dark stripe running through the eye and along the upper head. Its dorsal fin is often marked with dusky pigment, while the body may show subtle reticulated shading that becomes more noticeable when the fish is settled and well conditioned.

Like other Corydoras, this species has rows of bony plates rather than ordinary scales and a pair of sensitive barbels around the mouth. These whisker-like appendages help it locate food among the substrate, while the upturned mouth reflects its habit of searching across the bottom rather than actively hunting in open water.

Schwartz Corys are peaceful, sociable fish that spend much of their time exploring the lower levels in small groups. They are active without being boisterous, and their occasional dashes to the surface are a natural behaviour that allows them to take gulps of atmospheric air using a modified intestine.

In the wild, they inhabit slow-moving or gently flowing Amazonian waters, where leaf litter, submerged roots and soft sediment provide cover and feeding grounds. Their understated pattern and lively group behaviour make them a popular choice for tranquil community aquariums.

Schwartz Corys are native to Brazil in South America, particularly tributaries and connected habitats of the Rio Purus basin in the western Amazon region.

A group of Schwartz Corys should have at least a 75-litre aquarium, ideally measuring around 90 cm long by 30 cm wide or larger so they have meaningful floor space to explore. Use fine, smooth sand or rounded, inert gravel to protect their delicate barbels, along with driftwood, broad-leaved plants, leaf litter and shaded retreats. Gentle water movement, open areas for foraging and secure cover create a natural-feeling Amazonian layout.

Up to about 5.5 cm (2.2 in) in total length. Females are typically larger and fuller-bodied than males, which usually reach around 4.5–5 cm (1.8–2 in).

Schwartz Corys are omnivorous bottom feeders that should receive a varied diet of sinking micro-pellets, quality catfish tablets and granules, supplemented with frozen or live bloodworms, daphnia, brine shrimp and other small aquatic foods. Blanched vegetables can occasionally add variety, but their diet should not rely on leftover food; ensure that suitable food reaches the substrate where the group can find it.

Schwartz Corys suit peaceful community aquariums with small tetras, rasboras, pencilfish, peaceful dwarf cichlids, honey gouramis, small livebearers and other calm Corydoras. They should be kept away from large, aggressive or predatory fish, fin-nippers and boisterous bottom dwellers that may outcompete or injure them. Avoid housing them with large cichlids or other fish capable of swallowing them.

Schwartz Corys are egg-scattering spawners that can be conditioned with varied, protein-rich foods before a partial water change using slightly cooler, clean water. The female carries a few eggs between her pelvic fins while the male fertilises them, after which she places them on plant leaves, aquarium glass or other smooth surfaces. Remove the adults or protect the eggs from predation, and raise the fry on very small foods such as infusoria and newly hatched brine shrimp once they become free-swimming.

Females are generally broader through the body, especially when viewed from above, and are usually slightly longer than males. Males tend to be slimmer and smaller, with a more streamlined profile.