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Fish

Slate corydoras

Corydoras concolor
French name : Corydoras concolor

The slate corydoras is a small armored catfish of the family Callichthyidae, native to the Rio Guapore basin of Brazil and Bolivia. It has a plain slate-gray to bluish body, sometimes with subtle darker mottling and a warmer tone on the fins, giving it an understated, elegant appearance. It is a peaceful, gregarious bottom-dweller that should be kept in a group of six or more, where it forages and shoals contentedly. It suits calm community aquariums and coexists well with small, non-aggressive tankmates. It is somewhat less commonly available than other corydoras. It appreciates soft, slightly acidic, clean water and a fine sand substrate that protects its sensitive barbels. It is an omnivorous scavenger, taking sinking pellets, tablets, and small frozen foods, and benefits from a varied diet rather than leftovers alone. Like other corydoras it lays eggs on surfaces, and cooler water changes can help induce spawning.

Water
Freshwater
Origin
Rio Guapore basin, Brazil/Bolivia
Adult size
5.5 cm
Diet
Omnivore
Temperament
Peaceful
Difficulty
Intermediate
Keep in group of
6+
Slate corydoras (Corydoras concolor)
Illustration

Water parameters

Temperature22 – 26 °C
pH6 – 7.5
Carbonate hardness (KH)1 – 8 °dKH
General hardness (GH)2 – 12 °dGH

Tank & stocking

Minimum tank volume90 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 Slate corydoras need?

Provide at least 90 litres for a small group to keep Slate corydoras in good conditions.

What water parameters does Slate corydoras need?

A temperature of 22–26 °C, pH 6–7.5.

Is Slate corydoras peaceful or aggressive?

Its temperament is peaceful.

What does Slate corydoras eat?

Its diet: omnivore.

How many Slate corydoras should be kept together?

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

How big does Slate corydoras get?

Around 5.5 cm as an adult.

Is Slate corydoras suitable for beginners?

Care level: intermediate.

Planning a tank with Slate corydoras?

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 Slate corydoras to my tank Discover AquaTender
« Add to my tank » opens AquaTender — sign in (free) and pick your aquarium.

Fish from the same biotope

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