Edit Gastrodermus guapore

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Name

Scientific name

Gastrodermus guapore

Described by

Authority Knaack, Year 1961, Bracketed

Family

Callichthyidae

Common names

Guaporé Cory

Photograph credits

All 5 credited

Summary

The Guaporé cory, Gastrodermus guapore, long known as Corydoras guapore, is an armoured catfish endemic to the rio Guaporé (Río Iténez) in …

Size and aquarium

Maximum size

50mm, standard length

Aquarium size

Minimum length 90 cm, Minimum depth 30 cm

Water

Water conditions

Temperature 22–28°C, pH 5–7

Hardness

2–12dGH

Conductivity

Not recorded

Behaviour

Temperament

Peaceful

Community suitability

Community-safe

Where it lives

Countries, regions, rivers and lakes

Bolivia, Brazil, Amazon, Baures, Guaporé, Madeira, Paucerna

Writing

Etymology

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 o…

Distribution

Endemic to the rio Guaporé, a tributary system within the upper rio Madeira basin in northeastern Bolivia (where it is known as the Río Iténez) and western Bra…

Habitat

The Guaporé is an acidic, tannin-stained river with warm, clear water.

Aquarium size

Minimum base dimensi0ns of 90 ∗ 30 cm are recommended.

Maintenance

Ideally use a substrate of fine sand, although rounded gravel is an acceptable alternative provided that it is kept scrupulously clean. Other décor is largely …

Water conditions

Not written yet

Diet

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…

Behaviour and compatibility

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.

Reproduction

This species is rarely bred in aquaria, although when successful the method is typically similar to that used for many other Corydoras species. Use a ratio of …

This species is rarely bred in aquaria, although when successful the method is typically similar to that used for 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.

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Where does this come from?

My own experienceFor example, I've kept twelve in a planted 60 cm tank since March 2024.A website I sawFor example, an IUCN Red List assessment, a museum catalogue or a FishBase page.A paperFor example, Marshall et al. (2011), Water temperature differences in interfluvial palm swamp habitats of Paracheirodon axelrodi and P. simulans.A book, or something not onlineFor example, Tappin (2010), Rainbowfishes: their care and keeping in captivity.Something already on the pageFor example, the Behaviour and compatibility section already says this.

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DOI

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Year

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Notes

This species is a sought after aquarium fish although it is not often traded. It exhibits slightly different behaviour to the majority of congeners in that it …

References

6 on this profile

Name

Scientific name

Described by

Family

Common names

Photograph credits

Summary

Size and aquarium

Maximum size

Aquarium size

Water

Water conditions

Hardness

Conductivity

Behaviour

Temperament

Social needs

Community suitability

Where it lives

Countries, regions, rivers and lakes

Writing

Etymology

Distribution

Habitat

Aquarium size

Maintenance

Water conditions

Diet

Behaviour and compatibility

Sexual dimorphism

Reproduction

Notes

References

References