Emerald Brochis Corydoras

A large, deep-bodied Corydoradinae with an emerald green to blue-green metallic sheen, a bronze or golden underside and a long-based dorsal fin with more rays than typical corys. Mature adults are much more substantial than common small Corydoras.

Identify this profile by the combination of a deep-bodied form with metallic emerald-green to blue flanks and a large multi-rayed dorsal fin. Older sources commonly list this fish as Corydoras splendens; the current profile follows the accepted or revised placement Brochis splendens. 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 are usually larger and fuller through the abdomen, while males remain slimmer. The difference is easiest to see from above, and juveniles should not be sexed by pattern alone.

Plan for a robust adult group rather than juvenile size. Use a broad sandy floor, powerful filtration, strong oxygenation, shaded cover and open feeding areas, with decor placed securely and enough room for all fish to forage together.

A peaceful but substantial, energetic bottom fish. It needs enough room for the group to forage without crowding and may unintentionally unsettle very small or delicate tank mates during feeding.

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.

Choose peaceful but sturdy community fish that will not be intimidated by an active adult group. Very small, slow or delicate fish may be unsettled, while aggressive cichlids and large predatory catfish remain unsuitable.

Soft to moderately hard, slightly acidic to neutral water is suitable. Provide good oxygenation and keep ammonia and nitrite at zero.

Provide appropriately sized sinking pellets or tablets, supplemented with varied frozen or live invertebrate foods and some plant-based material. Adult groups need deliberate portions, but excess rich food should not be left to foul the substrate.

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.

Spawning uses the familiar T-position, with eggs attached individually to glass, plants or decor. Well-conditioned adults can produce a large clutch, so protecting the eggs and preparing enough clean grow-out space are important.