Are Bolivian Rams easier to keep than German Blue Rams?

Yes, significantly. While German Blue Rams require very warm (28-30°C), soft, acidic water and are sensitive to fluctuations, Bolivian Rams are more forgiving of water parameters and prefer standard tropical temperatures, making them much hardier for beginners.

Do I absolutely need sand for Bolivian Rams?

Yes, sand is strongly recommended. They are part of the 'earth-eating' cichlid lineage and need to sift substrate through their gills to forage and keep their gills clean. Sharp or coarse gravel will prevent this natural behaviour and can cause injury.

How can I tell the difference between a male and a female Bolivian Ram?

Sexing is tricky when young. As they mature, males tend to be larger, exhibit longer, more pointed extensions on their dorsal and caudal fins, and may have a slightly more robust head shape. Females are usually smaller and plumper, especially when gravid (carrying eggs).

Can I keep just one Bolivian Ram, or do they need to be in pairs?

They can be kept as solitary individuals perfectly happily in a community tank. However, keeping a male-female pair allows you to witness their fascinating courtship and biparental care behaviours.

Will Bolivian Rams eat my shrimp?

They are micro-predators. While adult Amano shrimp or large Wood shrimp are generally safe, small dwarf shrimp (like Neocaridina or cherry shrimp) and their fry are at very high risk of being hunted and eaten by Bolivian Rams.

FreshwaterTropicalBeginner

Bolivian Ram

Mikrogeophagus altispinosus

A peaceful and forgiving dwarf cichlid from South America, renowned for its charming sand-sifting behaviour and subtle, elegant coloration.

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Ideal Conditions

Temperature: 24 – 28 °C
pH range: 6 – 7.5
Hardness: 1 – 10 dGH
Adult size: 7 – 8 cm
80L minimum for a pair: 80 litres+
Lifespan: 4 – 6 years
Diet: Omnivore/benthophagous
Water flow: Low to moderate
Preferred setup: Soft sandy substrate essential for natural sifting behaviour, mixed with leaf litter, driftwood, and smooth flat stones for spawning.

About the Bolivian Ram

The Bolivian Ram (*Mikrogeophagus altispinosus*) is one of the most delightful and easily accommodated dwarf cichlids in the hobby. While its colours may not be as immediately vivid as its close relative, the German Blue Ram, it boasts a subtle, earthy beauty that deepens as the fish matures and settles. Crucially, Bolivian Rams are considerably hardier, making them a far better choice for beginners or those transitioning to cichlid keeping. They spend their days thoughtfully sifting through the substrate in search of morsels, occasionally pausing to survey their environment.

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Is it right for your tank?

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Where Bolivian Ram comes from

Native range

Amazon Basin, Mamoré River, Guaporé River

Countries / regions

Bolivia, Brazil

Habitat

Shallow, slow-moving streams and floodplain lakes with soft sandy bottoms, root structures, and fallen leaves.

Primarily found in the upper Madeira River basin in Bolivia and the adjacent border areas of Brazil.

Similar species

German Blue Ram
Mikrogeophagus ramirezi
Cockatoo Dwarf Cichlid
Apistogramma cacatuoides
Agassiz's Dwarf Cichlid
Apistogramma agassizii
Kribensis
Pelvicachromis pulcher

We’re adding more full species guides as the catalogue grows.

Compatible tank mates

Reviewed guidance based on this species' recorded traits.

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Rummy-nose Tetra
Hemigrammus rhodostomus
Peaceful mid-water schooling fish that act as dither fish, encouraging the rams to feel secure and spend more time out in the open.
Great
Sterba's Corydoras
Corydoras sterbai
They share similar water parameter requirements and remain peaceful bottom-dwellers, though ensure the tank is large enough so they do not stumble into the rams' breeding territory.
Great
Marbled Hatchetfish
Carnegiella strigata
Occupy the very top of the water column, completely avoiding the bottom-dwelling territory of the Bolivian Ram.
Great
Cockatoo Dwarf Cichlid
Apistogramma cacatuoides
Both are bottom-dwelling dwarf cichlids that will compete for territory. Only attempt in spacious tanks with distinct visual barriers.
Compatible with caution
Tiger Barb
Puntigrus tetrazona
Can be too boisterous and prone to nipping the trailing fins of the somewhat slow-moving Bolivian Ram.
Not recommended
Oscar
Astronotus ocellatus
Large and predatory cichlids will easily view the diminutive Bolivian Ram as food or completely dominate them.
Not recommended

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