Icana cory
Brochis incolicana
Also known as Corydoras incolicana, C1
FreshwaterFish

Care at a glance
- Temperature
- 75–82°F
- 24–28°C
- pH
- 5.5–7.0
- Adult size
- 2.4 in
- 6 cm
- Minimum tank
- 20 gal
- 75 L
- Temperament
- Peaceful
- Social behavior
- Shoaling
- Swim level
- Bottom
- Difficulty
- Medium
- Breeding
- No record
- Rarity
- Rare
- Family
- Callichthyidae
- Origin
- Rio Icana basin, upper Rio Negro drainage, Brazil
Overview
The Icana cory is a peaceful blackwater cory that lives in shoals near the bottom of the tank. It suits someone who has kept fish before.
Did you know
The Icana cory got the very first slot, C1, when German aquarists invented the C-number system for unidentified cories.
Caring for the Icana cory
Icana cories belong in a shoal of at least six, in a tank of 20 gal (75 L) or more. Rio Negro shipments bring them in modest numbers at best, so a group takes patience to assemble.
Set up a blackwater-leaning tank with fine sand, leaf litter and shade from wood. Keep the water soft and warm, at 75 to 82°F (24 to 28°C) and a pH of 5.5 to 7.0.
They eat the standard menu of sinking and frozen foods once settled. Fresh imports can be slow to start feeding. Icana cories are gentle, safe community fish. Documented breeding of this species is lacking.
Good to know
The Icana cory was described by Warren Burgess in 1993. The 2024 revision lists it as Brochis incolicana, in the family Callichthyidae. It wears a clean arc of dark pigment along the back half of the body.
In the wild
The Icana cory lives in the Rio Icana, a blackwater tributary of the upper Rio Negro in Brazil. It is found over white sand and sunken leaves, in warm and very soft water.
Weekly picks
Tank mates
The Icana cory is a peaceful, shoaling species that keeps to the bottom. These picks share a community profile with it, are safe together in both directions, and overlap on water type, temperature and pH.

Kuekenthal's halfbeak
Hemirhamphodon kuekenthali
Freshwater3.3 in (8.5 cm) · 20 gal (75 L)73–81°F (23–27°C)
Vampire shrimp
Atya gabonensis
Freshwater5.1 in (13 cm) · 20 gal (75 L)75–82°F (24–28°C)
Humpbacked limia
Limia nigrofasciata
Freshwater2.4 in (6 cm) · 20 gal (75 L)72–82°F (22–28°C)
Eel kuhli loach
Pangio anguillaris
Freshwater4.7 in (12 cm) · 20 gal (75 L)72–82°F (22–28°C)
Blue panchax
Aplocheilus panchax
Freshwater3.5 in (9 cm) · 20 gal (75 L)72–82°F (22–28°C)
Marble wood shrimp
Atya scabra
Freshwater3.9 in (10 cm) · 20 gal (75 L)73–82°F (23–28°C)
Common questions
What size tank does an Icana cory need?
An Icana cory needs at least 20 gal (75 L). It spends most of its time in the bottom.
What temperature and pH does an Icana cory need?
An Icana cory is comfortable at 75–82°F (24–28°C) with a pH of 5.5–7.0.
What does an Icana cory eat?
An Icana cory eats the standard menu of sinking and frozen foods once it settles in. Fresh imports can be slow to start feeding.
How big does an Icana cory get?
An adult Icana cory reaches about 2.4 in (6 cm).
Does an Icana cory need a group?
Yes. An Icana cory is a shoaling species and should be kept in a group, not singly.
Related species
2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)False blochi cory
Brochis delphax
2.4 in (6 cm) · 20 gal (75 L)
2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)Gomez's cory
Brochis gomezi
2.4 in (6 cm) · 20 gal (75 L)
2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)Miguelito cory
Brochis virginiae
2.4 in (6 cm) · 20 gal (75 L)
2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)Reticulated cory
Brochis reticulata
2.4 in (6 cm) · 20 gal (75 L)
2.6 in (6.5 cm)20 gal (75 L)75–82°F (24–28°C)Amanda Jane's cory
Brochis amandajanea
2.6 in (6.5 cm) · 20 gal (75 L)
2.6 in (6.5 cm)20 gal (75 L)73–79°F (23–26°C)Bannertail cory
Brochis robineae
2.6 in (6.5 cm) · 20 gal (75 L)