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Can sometimes be difficult to identify, has two white stripes along the body with a blackish stripe splitting them. All fins have a yellow tinge. Quite similar to G. nanus. Males usually have a black blotch to the dorsal fin. Lineage: Part of the so called "Elegans Group" which would place it in Lineage 5. A revision in the future could involve the resurrection of the genus name Gastrodermus (Cope, 1878), with the designated type species: C. elegans. As of the latest update Corydoras nanus has now been placed in Lineage 5 and has the new genus name of Gastrodermus (2024). Aquarium Care: This is akin to most of this genus, very peaceful, and would be best housed with small to medium sized tankmates such as Tetras, Rasboras and Danios or in a species tank for breeding purposes. Best to purchase 6 individuals or more as they will be happier in a group. Diet: Readily accepts a mixed and varied diet which includes granular foods, tablet food, frozen bloodworm and a good quality flake. Etymology: The specific name napoensis: Named after Napo, one of the regions from which it was collected. Remarks: Still found on some online sources as Corydoras napoensis.

Corydoras sp "San Juan"

Corydoras napoensis

Callichthyidae

South America: Western Amazon River basin, eastern Ecuador and Peru Type locality: Napo, Lagartococha, affluent septentrional du Rio Aguarico, entre l’embouchure de la rivière (0º39'S, 75º16'W) et le village de Garzacocha (0º28'S, 75º21'W), bassin du Rio Napo, Ecuador.

Male: 4.5cm (1¾ins) Female: 5.0cm (2ins)

23-25°C (73-77°F)

6.5-7.2.