Adolfo's cory
Hoplisoma adolfoi
Also known as Corydoras adolfoi, Adolfo's Hoplisoma
FreshwaterFish
Care at a glance
- Temperature
- 70–79°F
- 21–26°C
- pH
- 6.0–7.2
- Adult size
- 2.4 in
- 6 cm
- Minimum tank
- 20 gal
- 75 L
- Temperament
- Peaceful
- Social behavior
- Shoaling
- Swim level
- Bottom
- Difficulty
- Easy
- Breeding
- Hard
- Rarity
- Common
- Family
- Callichthyidae
- Origin
- Brazil
Overview
Keep them in a group of at least six, more if you have room, since they get nervous on their own. They stay on the bottom, sifting sand for food with their barbels. They are peaceful and mix well with small, calm community fish. Feed sinking pellets, frozen bloodworms, and the odd algae wafer, and make sure food actually reaches the floor. Aim for a tank around 75 liters or larger.
In the wild
Adolfo's cory comes from blackwater tributaries of the upper Rio Negro in Brazil. The water there is soft, acidic, and stained brown by leaf litter over sand. Give them a fine sand bottom, some dried leaves or wood, and gentle filtration to match that. Soft, slightly acidic water in the low to mid 20s C keeps them comfortable.
Good to know
This is a member of Callichthyidae, the armored catfish family. Adults reach about 6 cm. Like other Corydoras, the body is covered in bony plates rather than scales. They are egg layers, and breeding them is on the harder side, usually triggered by cool water changes. Healthy fish can live well past five years.
Did you know
Adolfo's cory is named after Adolfo Schwartz, a Brazilian fish exporter who first brought it to the trade. It is easy to confuse with the false cory, Corydoras imitator, which copies its pattern almost exactly.
Weekly picks
Tank mates
Adolfo's 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.

Black widow tetra
Gymnocorymbus ternetzi
Freshwater2.4 in (6 cm) · 20 gal (75 L)68–79°F (20–26°C)
Six-barred panchax
Epiplatys sexfasciatus
Freshwater3.9 in (10 cm) · 20 gal (75 L)72–81°F (22–27°C)
Common whiptail
Rineloricaria parva
Freshwater4.7 in (12 cm) · 20 gal (75 L)68–79°F (20–26°C)
Dwarf flag cichlid
Laetacara curviceps
Freshwater2.2 in (5.5 cm) · 20 gal (75 L)68–82°F (20–28°C)
Blue panchax
Aplocheilus panchax
Freshwater3.5 in (9 cm) · 20 gal (75 L)72–82°F (22–28°C)
Dwarf botia
Ambastaia sidthimunki
Freshwater2.4 in (6 cm) · 20 gal (75 L)68–86°F (20–30°C)
Common questions
What size tank does an Adolfo's cory need?
An Adolfo's cory needs at least 20 gal (75 L). It spends most of its time in the bottom.
What temperature and pH does an Adolfo's cory need?
An Adolfo's cory is comfortable at 70–79°F (21–26°C) with a pH of 6.0–7.2.
How big does an Adolfo's cory get?
An adult Adolfo's cory reaches about 2.4 in (6 cm).
Does an Adolfo's cory need a group?
Yes. An Adolfo's cory is a shoaling species and should be kept in a group, not singly.
Related species
2.4 in (6 cm)16 gal (60 L)75–82°F (24–28°C)Ancestor cory
Hoplisoma noxium
2.4 in (6 cm) · 16 gal (60 L)
2.4 in (6 cm)16 gal (60 L)68–77°F (20–25°C)Carla's cory
Hoplisoma carlae
2.4 in (6 cm) · 16 gal (60 L)
2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)Concolor cory
Hoplisoma concolor
2.4 in (6 cm) · 20 gal (75 L)
2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)Froehlich's cory
Hoplisoma froehlichi
2.4 in (6 cm) · 20 gal (75 L)
2.4 in (6 cm)20 gal (75 L)72–79°F (22–26°C)Gossei cory
Hoplisoma gossei
2.4 in (6 cm) · 20 gal (75 L)
2.4 in (6 cm)21 gal (80 L)72–79°F (22–26°C)Sands cory
Hoplisoma davidsandsi
2.4 in (6 cm) · 21 gal (80 L)
