RSS Facebook Twitter YouTube




Corydoras lamberti NIJSSEN & ISBRÜCKER, 1986



Corydoras: from the Ancient Greek κόρυς (korus), meaning ‘helmet’, and δορά (dora), meaning ‘skin, hide of an animal’, in allusion to the rows of bony plates on the flanks of genus members.

lamberti: named in honour of Lambertus van Tuijl.


Order: Siluriformes Family: Callichthyidae


Known only from the lower Río Pastaza, a major tributary of the Río Marañón in the upper Amazon basin, Loreto Region, northern Peru. Similar-looking fish are also known from tributary systems close to Iquitos (see ‘Notes’).

Type locality is ‘Downstream of Río Huytoyacu, right tributary of Río Pastaza, about 40 kilometers north of Lago Rimachi, 4°13’S, 76°38’W, Loreto, Peru’.

Maximum Standard Length

50 – 55 mm.

Aquarium SizeTop ↑

Minimum base dimensi0ns of 80 ∗ 30 cm or equivalent are recommended.


Ideally use a substrate of fine sand, although rounded gravel is an acceptable alternative provided it’s kept scrupulously clean.

Other décor is largely down to personal choice, but some cover should be provided to give the fish security.

Water Conditions

Temperature20 – 26 °C

pH6.0 – 8.0

Hardness36 – 215 ppm


Corydoras spp. are foraging omnivores, and most will accept sinking dried foods as well as small live and frozen varieties such as chironomid larvae (bloodworm), Tubifex, etc.

Feeding a varied diet will ensure the fish are in optimum condition.

Under no circumstances should they be expected to survive on ‘left-overs’ from other inhabitants of the aquarium or relied on to ‘clean’ the aquarium.

Behaviour and CompatibilityTop ↑

Peaceful and gregarious. Should be maintained in a group of at least 4-6 individuals.

Sexual Dimorphism

Females tend to grow larger, and sexually mature individuals are noticeably broader and deeper-bodied than males.


Can be bred in a similar fashion to many other Corydoras species.

Use a ratio of two or more males per female if possible, and when the females are visibly full of eggs perform a large (50-70%) water change with cooler water, and increase oxygenation and flow in the tank. Repeat this daily until the fish spawn.

Eggs may be deposited on the aquarium glass, among fine-leaved vegetation or within sunken spawning mops, with the latter particularly recommended since they facilitate easy removal of eggs.

Once spawning is complete either adults or eggs should be removed; the latter can usually be rolled gently up the glass with a finger. The new container should contain the same water as the spawning tank and be similarly well-oxygenated.

Most breeders add a few drops of methylene blue, or an alder cone or two at this point in order to prevent the eggs developing fungus.

Incubation is normally 3-4 days and once the fry have fully-absorbed their yolk sacs they are able to accept small live foods such as microworm, Artemia nauplii, etc.

They are not the easiest to raise, requiring excellent water quality, but seem less susceptible to ailments when maintained over a thin layer of sand rather than in a bare arrangement.

NotesTop ↑

C. lamberti is rare in the aquarium hobby and difficult to identify unless collection details are available, meaning it may have been traded under other names.

Unfortunately diagnostic characters cannot be provided since we have been unable to obtain the type description to date, and little else has been written about this species.

There is also confusion regarding whether C. lamberti, the unidentified ‘C009’, and similar-looking fish collected close to Iquitos are conspecific or not. We include all together here until these issues are resolved.

The genus Corydoras is among the largest catfish groups and currently contains over 150 valid species.

It is included in the family Callichthyidae, of which members are often referred to collectively as ‘armoured’ or ‘mailed’ catfishes group due to the presence of bony plates in place of scales on the body.

Their taxonomy can be confusing, and numerous undescribed species are also thought to exist. Fish of unconfirmed identification entering the aquarium hobby are therefore typically assigned a ‘C’ or ‘CW’ number for purposes of reference and organisation.

They are facultative air breathers and possess a modified, highly vascularised intestine which has evolved to facilitate uptake of atmospheric oxygen and aid survival in oxygen-deprived environments. In the aquarium you’ll occasionally see them rising to the surface to take in gulps of air.

The stiffened pectoral-fin spines are capable of piercing human skin and a ‘sting’ can be very painful indeed, so care should be exercised when handling them.

It is thought that secretions from the axillary glands at the base of each spine may even be mildly toxic or venomous.


  1. Nijssen, H. and I. J. H. Isbrücker , 1986 - Revue française d'Aquariologie Herpétologie 12(3): 65-76
    Cinq espèces nouvelles de poissons-chats cuirassés du genre Corydoras Lacepède, 1803, du Pérou et de l'Equateur (Pisces, Siluriformes, Callichthyidae).
  2. Ferraris, C. J., Jr., 2007 - Zootaxa 1418: 1-628
    Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types.
  3. Fuller, I. A. M., and H-G. Evers, 2005 - Verlag A. C. S. GmbH: 1-384
    Identifying Corydoradinae Catfish.
  4. Reis, R. E., S. O. Kullander and C. J. Ferraris, Jr. (eds), 2003 - EDIPUCRS, Porto Alegre: i-xi + 1-729
    Check list of the freshwater fishes of South and Central America. CLOFFSCA.
Missing information here? Our Knowledge Base is an ever-evolving work in progress, which naturally means that some species profiles contain more information than others. We're working on a daily basis to fill in all the gaps, so please have patience. This site relies heavily on the help of hundreds of people without whose valuable contributions it simply wouldn't exist. Information and photos regarding any freshwater or brackish fish species, its natural history or captive care is always much appreciated, so if you've anything you'd like to share please leave a comment below or email us.

No Responses to “Corydoras lamberti – C009 (C009)”

Leave a Reply

You must be logged in to post a comment.