African Humphead Cichlid – Steatocranus casuarius 4cm

The African Humphead Cichlid – Steatocranus casuarius is a fascinating Central African cichlid known for its distinctive forehead, unusual bottom-hopping movement and adaptation to the fast-flowing waters of the Lower Congo River.

Also known as the Lionhead Cichlid, Blockhead Cichlid or Buffalohead Cichlid, this species has a reduced swim bladder that helps it remain close to the substrate in strong currents.

Fish supplied are approximately 4cm unless otherwise stated.

Fish Profile

• Common Names: African Humphead Cichlid, Lionhead Cichlid, Blockhead Cichlid, Buffalohead Cichlid
• Scientific Name: Steatocranus casuarius
• Family: Cichlidae
• Sale Size: Approximately 4cm
• Adult Size: Approximately 10–12cm
• Origin: Lower Congo River, Central Africa
• Temperament: Territorial, particularly around caves and during breeding
• Temperature: Approximately 24–28°C
• pH: Approximately 6.0–7.5
• Hardness: Approximately 2–15 dGH
• Recommended Aquarium: Around 75 litres or larger for a compatible pair
• Diet: Omnivorous
• Breeding: Monogamous cave spawner

About the African Humphead Cichlid

Steatocranus casuarius comes from turbulent sections of the Lower Congo River system, where fish must cope with strong currents and highly oxygenated water.

Unlike many aquarium fish, the Humphead Cichlid has a reduced swim bladder. This helps reduce buoyancy and allows the fish to remain close to rocks and the riverbed rather than being swept away by fast-moving water.

This adaptation also produces one of the species' most entertaining behaviours. Rather than swimming continuously through open water, Humphead Cichlids often move across the substrate in short, hopping movements.

Adult Size and Appearance

Adult African Humphead Cichlids generally reach around 10–12cm.

Males are usually larger than females and develop a more pronounced nuchal hump on the forehead as they mature.

The species is not as brightly coloured as many African Rift Lake cichlids, but its unusual body shape, behaviour and personality make it particularly interesting to keep.

Aquarium Setup

The ideal aquarium should recreate some of the structural features of a fast-flowing Congo River habitat while still providing areas where the fish can rest away from strong current.

A suitable setup can include:

• Fine sand substrate
• Rock caves and crevices
• Securely positioned driftwood
• Strong filtration
• Good oxygenation
• Moderate to strong water movement
• Lower-flow resting areas

Rockwork should be positioned securely because these cichlids may dig beneath decorations when creating territories or breeding caves.

Water Flow and Oxygenation

Good oxygenation is particularly important for Steatocranus casuarius because the species naturally inhabits flowing and turbulent water.

A quality aquarium filter can provide much of the required circulation, while a suitable powerhead may be used to create additional water movement in larger aquariums.

Do not make the entire aquarium a high-flow zone. Provide caves and quieter areas where the fish can rest out of the strongest current.

Water Conditions

African Humphead Cichlids are best maintained in clean, stable freshwater conditions.

• Temperature: Approximately 24–28°C
• pH: Approximately 6.0–7.5
• Hardness: Approximately 2–15 dGH

Regular water changes, strong biological filtration and good dissolved oxygen levels are important for maintaining healthy fish.

Feeding

Steatocranus casuarius will accept a variety of aquarium foods.

A balanced diet can include:

• Quality cichlid pellets
• Sinking pellets
• Quality flakes
• Frozen brine shrimp
• Frozen or live bloodworms in moderation
• Other suitable small aquatic foods

Offering a varied diet helps maintain good condition and supports breeding behaviour.

Temperament and Tank Mates

African Humphead Cichlids can be territorial, especially around caves and when breeding.

They are commonly maintained as a compatible pair. More than one pair requires substantially more aquarium space so each pair can establish its own territory.

Suitable tank mates should prefer similar water conditions and be capable of living in a well-oxygenated aquarium with water movement.

Avoid combining them with highly aggressive cichlids or fish that continually compete for the same caves and bottom territory.

Can African Humphead Cichlids Be Kept as a Pair?

Yes. Steatocranus casuarius is a pair-forming species and is often best maintained as a compatible male and female.

However, simply placing two adult fish together does not guarantee that they will form a compatible pair. Allowing young fish to form natural pair bonds is often more successful when breeding is the goal.

Breeding

African Humphead Cichlids are monogamous cave spawners.

A bonded pair will select or excavate a cave beneath rockwork or another suitable shelter.

The female lays the eggs inside the cave, where both parents participate in protecting the breeding territory and developing young.

Broods can contain approximately 20–150 eggs. The parents provide strong brood care and may continue guarding the young for an extended period. FishBase also records the species as producing 20–150 eggs.

Why Choose an African Humphead Cichlid?

The African Humphead is an excellent choice for aquarists looking for something different from the more commonly kept Malawi and Tanganyika cichlids.

Its distinctive head shape, unusual hopping movement, pair-bonding behaviour and adaptation to flowing Congo River habitats make Steatocranus casuarius one of the more unusual African cichlids available in the aquarium hobby.

Browse more African Cichlids available from Aquaholics.

Frequently Asked Questions

How big do African Humphead Cichlids grow?

Steatocranus casuarius generally reaches around 10–12cm, with males usually becoming larger than females.

Why does the Humphead Cichlid hop along the bottom?

This species has a reduced swim bladder that helps it remain close to the substrate in the strong currents of its natural Lower Congo River habitat. As a result, it often moves across the aquarium in distinctive short hopping movements.

What temperature do African Humphead Cichlids need?

A temperature of approximately 24–28°C is suitable.

What pH does Steatocranus casuarius prefer?

A pH of approximately 6.0–7.5 is suitable when water conditions are stable and water quality is good.

Do African Humphead Cichlids need strong water flow?

They benefit from good water movement and high oxygen levels because they naturally inhabit flowing water. The aquarium should also include quieter areas where the fish can rest out of the strongest current.

Are African Humphead Cichlids aggressive?

They can be territorial, especially around caves and during breeding, but they are not generally regarded as highly aggressive compared with many larger cichlids.

Can Humphead Cichlids be kept in pairs?

Yes. Steatocranus casuarius forms pairs and is commonly kept as a compatible male and female.

What do African Humphead Cichlids eat?

They accept a varied diet including quality pellets, flakes and suitable live or frozen foods such as brine shrimp and bloodworms.

How do African Humphead Cichlids breed?

They are cave spawners. A bonded pair selects or excavates a sheltered cave where the eggs are laid and the parents subsequently guard the developing young.

Where does Steatocranus casuarius come from?

The species originates from Pool Malebo and the Lower Congo River system in Central Africa.