Agassiz's cory
Corydoras agassizii
Also known as Brochis agassizii, Spotted cory, Agassiz cory
Care at a glance
- Temperature
- 72–79°F (22–26°C)
- pH
- 6.0–7.5
- Adult size
- 2.8 in (7 cm)
- Minimum tank
- 24 gal (90 L)
- Temperament
- Peaceful
- Social behavior
- Schooling
- Swim level
- Bottom
- Difficulty
- Medium
- Breeding
- Medium
- Rarity
- Common
- Origin
- Upper Amazon around Iquitos in Peru and western Brazil.
- Family
- Callichthyidae
Overview
Keep them in a group of six or more over smooth sand at 22 to 26 C in soft to neutral water. They are peaceful and settle in well in a planted community with gentle tankmates. Offer sinking pellets, frozen bloodworm and other small foods that reach the bottom.
In the wild
Agassiz's cory lives in tributaries of the upper Amazon near Iquitos, foraging over sand and fine sediment. The water is warm, soft and slightly acidic. It forms groups in slow, shaded stretches near wood and leaf litter.
Good to know
This is one of several near identical spotted, tall finned cories, and the quickest way to recognize it is the solid black front edge of the dorsal fin. The 2024 revision placed it in the genus Brochis as Brochis agassizii. Cooler, softer water changes that imitate the rainy season help trigger spawning.
Did you know
The jet black leading edge of the dorsal fin is the fastest way to tell Agassiz's cory from the other spotted cories it resembles.
Where to buy
Some links may not be the exact species or variety.
…or ask your local fish store.
Appears in
Freshwater fish · Corydoras · Schooling fish · Community fish · Bottom dwellers
Keeping Agassiz's cory?
Track water tests, reminders and stocking fit.
Related species

Leopard cory
Corydoras leopardus2.8 in (7 cm)24 gal (90 L)72–79°F (22–26°C)
Mosaic cory
Corydoras haraldschultzi2.8 in (7 cm)20 gal (75 L)75–82°F (24–28°C)
Peppered cory
Corydoras paleatus2.8 in (7 cm)21 gal (80 L)72–79°F (22–26°C)
Schwartz's catfish
Corydoras schwartzi2.8 in (7 cm)20 gal (75 L)72–79°F (22–26°C)Fowler's cory
Corydoras fowleri2.8 in (7 cm)26 gal (100 L)72–79°F (22–26°C)Long nosed arched cory
Corydoras narcissus2.8 in (7 cm)30 gal (115 L)73–77°F (23–25°C)
