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Fish

Julii Cory

Corydoras julii
French name : Corydoras julii

Corydoras julii, the true Julii cory, is a small armored catfish from coastal river systems of northeastern Brazil, distinguished by a network of fine, separate dark spots on a silvery body and a reticulated head pattern. Many fish sold under this name are actually the similar Corydoras trilineatus. It is a peaceful, sociable bottom-dweller that thrives in groups of six or more, foraging constantly across soft sand that protects its barbels. An excellent beginner and community species, it pairs well with tetras, dwarf cichlids, and other calm fish. Keep it in soft to moderately hard, slightly acidic to neutral water at pH 6.0-7.5 and 22-26C with clean, well-oxygenated conditions and gentle flow. As an omnivore it accepts sinking pellets, wafers, and frozen or live bloodworms, daphnia, and tubifex.

Water
Freshwater
Origin
Lower Amazon tributaries, northeastern Brazil
Adult size
5.5 cm
Diet
Omnivore
Temperament
Peaceful
Difficulty
Beginner
Keep in group of
6+
Julii Cory (Corydoras julii)
Illustration

Water parameters

Temperature22 – 26 °C
pH6 – 7.5
Carbonate hardness (KH)2 – 10 °dKH
General hardness (GH)2 – 15 °dGH

Tank & stocking

Minimum tank volume80 L
Volume budget per individual 10 L — adds up with tank-mates
Minimum group size6 individuals (shoaling)

“Minimum tank volume” is a reasonable floor, not an absolute limit. The per-individual budget is used by the Aqua app to estimate how heavily a tank is stocked.

Frequently asked questions

What size aquarium does Julii Cory need?

Provide at least 80 litres for a small group to keep Julii Cory in good conditions.

What water parameters does Julii Cory need?

A temperature of 22–26 °C, pH 6–7.5.

Is Julii Cory peaceful or aggressive?

Its temperament is peaceful.

What does Julii Cory eat?

Its diet: omnivore.

How many Julii Cory should be kept together?

It is a social species: keep a group of at least 6.

How big does Julii Cory get?

Around 5.5 cm as an adult.

Is Julii Cory suitable for beginners?

Care level: beginner.

Planning a tank with Julii Cory?

AquaTender turns these parameters into live advice: it checks whether your tank is big enough, how heavily it's stocked, and whether your fish are compatible — then tracks water tests, photos and maintenance for you.

➕ Add Julii Cory to my tank Discover AquaTender
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Fish from the same biotope

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