Adolfo's catfish

Photo: Corydoras-adolfoi, CC BY-SA 4.0, via Wikimedia Commons

Callichthyidae

Adolfo's catfish

Corydoras adolfoi

peacefulshoal

6 cm

Adult size

80 L

Minimum volume

8

Minimum group

5 years

Lifespan

Water parameters

Understand these values
pH4 – 7
49
Hardness (GH)1 – 5°
0°30°
Temperature20 – 26°C
18°C32°C
Genus
Corydoras
Diet
omnivore
Social life
shoal

In the wild

Overview

Named after the famous collector Adolfo Schwartz, this Corydoras has a dark oblique band on its back, like several related species from the Rio Negro, and an orange patch on the nape. Since 2024, researchers have placed it in the genus Hoplisoma.

Scientific name
Hoplisoma adolfoi (Burgess, 1982)Current valid name; in the hobby: Corydoras adolfoi
Classification
Siluriformes › Callichthyidae
IUCN Red List
Least concern (LC)

Natural habitat

Brazil: upper Rio Negro, near São Gabriel da Cachoeira

Observations (GBIF) and localities Native countries Rivers and lakes

It lives in blackwater tributaries and flooded forests of the upper Rio Negro: tea-coloured water with almost no hardness, pH 4 to 6, alongside small characins, pencilfish and Apistogramma.

Behaviour

Peaceful and gregarious, it is kept in a group. An omnivore, it sifts the substrate: sinking dry food and live or frozen prey, without relying on the other fish's leftovers. It needs soft, acidic and very clean water.

Sources:FishBase Seriously Fish GBIF · Base map: Natural Earth

Adolfo's catfish · Aquarius