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Emerald Green Cory

Corydoras splendens

Freshwater South America Usually captive bred

Formerly classed in Brochis, this chunky armoured catfish sports brilliant metallic emerald-green flank plates. It constantly sifts soft sand for food while snuffling with delicate barbels. Always maintain them on smooth sand substrate in a group of six or more to avoid damaging their sensitive sensory barbels.

Also called: Blue catfish, Emerald brochis, Emerald catfish, Green catfish, Shortbody catfish.

8 cm adult length, drawn to scale. deep body.

Try it in the planner Opens a tank sized to its minimum with 6 fish added.

What it needs

ItemValueBecause
Adult length 8 cm Used for the Space check: the tank must be long enough for the fish to turn round.
Smallest tank 100 L, at least 80 cm long estimated The least water and floor length this species is kept in for good, as a single fish or smallest group.
Extra water per added fish 15 L estimated What each further fish adds once the minimum is met.
Waste load Class 2 of 5 estimated How much waste an adult makes against its size. Feeds the Load check.
Temperature 22 to 26 C Stock sharing a tank need overlapping ranges.
pH 6 to 7.5 Compared with tankmates in the Water check.
Hardness GH 4 to 15, KH 2 to 8 Degrees of general and carbonate hardness.
Flow Medium Low-flow fish are stressed in a strong current.
Light Moderate Matched to the lighting class on the needs sheet.
Group size At least 6, ideally 8 Kept alone or in small numbers it hides, fades or turns on tankmates.
Temperament Peaceful Not territorial.
Swims in Near the bottom Fish that use different levels share a tank more easily.
Lifespan About 8 years A fish is a long commitment.
Experience Suits a first tank A guide to how forgiving the species is of mistakes.

Tags marked estimated are judged from the size and habits of the species rather than measured, so treat them as a sensible default.

Diet and tank layout

Emerald Green Cory is an omnivore that swims in the lowest part of the tank. It is safe with plants. Give it some cover. It digs, so anchor plants and keep hard rock off loose sand.

Tankmates

Works with

No close matches in the data. Check the pair tool.

Depends

Avoid

Compare any two fish on the compatibility page, or print the equipment for a stock on the needs sheet. How this is worked out: the method.