Cat-eLog Right Callichthyidae Right Corydoradinae Right Gastrodermus  |  | 

Down Cat-eLog Data Sheet
Scientific Name Gastrodermus undulatus    (Regan, 1912)
Common Names Bølgelinjet Pansermalle (Denmark)
Panzerwels/Corydoras - Catfish (Germany)
Type Locality La Plata, Buenos Aires, Argentina [aquarium import of doubtful origin, most likely from the Entre Ríos area, Argentina].
Pronunciation gas trow derr muss
Etymology This specific epithet refers to its wavy (undulating) colour pattern.
Down Species Information
Size 44mm or 1.7" SL. Find near, nearer or same sized spp.
Sexing Females grow larger and are more full-bodied, this is best observed from above the fish. Males will typically have more pointed as opposed to more rounded fin tips as they mature.
Down Habitat Information
Distribution South America: Lower Paraná River basin and coastal rivers in southern Brazil.
La Plata, Paraná (click on these areas to find other species found there)

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IUCN Red List Category
Not Evaluated
Down Husbandry Information
Feeding This species will readily accept all prepared foods that reach the bottom of the aquarium such as tablets, granules and larger flakes. Live (or frozen) foods such as bloodworm, white worm, grindal worm (Enchytraeus), Daphnia and Tubifex are readily accepted and good for conditioning groups of fishes for spawning. User data.
Furniture Ideally substrate should be sand, but rounded gravel is an imperfect alternative. Avoid keeping over rough edged (chipped) gravel, this will increase this risk of damage the fishes barbels when it tries to dig. Substrate should be bordered with driftwood and aquatic plants leaving an open area for them to search for food and swim. The shade provided by overhanging rock work, arching bogwood, tall or floating plants are all that is required to settle these fishes.
Compatibility A peaceful, shoaling, community fish.
Breeding Unreported.
Breeding Reports There is but a single breeding report, read it here.
Down Further Information
Reference Annals and Magazine of Natural History (Series 8) v. 10 (no. 56), pp 217.
Registered Keepers There are 12 registered keepers, view all "my cats" data.
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There are 5 records of this fish being seen, view them all.
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Gastrodermus undulatus QR code LFS label creator
ARN ref:1.1.1581.509
Last Update 2025 Jan 02 01:40 (species record created: 2001 May 04 00:00)