Species profile
Bolivian Ram
Mikrogeophagus altispinosus
Peaceful
Moderate care
80 L minimum aquarium
5–8 cm adult size
Bottom–mid
Can be kept singly
About this species
General notes for hobby use.
Peaceful dwarf cichlid that does best on fine sand with shaded cover and stable, clean water. Less heat-demanding than M. ramirezi.
Water parameters
Suggested general range for long-term care.
Temperature
23–28 °C
pH
6–7.5
GH
Up to 15 dGH
KH
Not yet documented
Flow preference
Low–moderate
Data confidence
Verified
Behaviour
General behaviour traits used by TanksConnected compatibility checks.
Minimum group size
Can be kept singly
Tank zone
Bottom–mid
Territory level
Moderate
Predation risk
Shrimp fry
Bioload factor
1.2
Usually community-friendly, but pairs defend a modest territory around spawning sites. Avoid aggressive bottom fish and allow retreat space.
Compatibility flags
Quick cautions for common tank-planning issues.
Fin nipper
No
Plant safe
Yes
Shrimp safe
No / caution
Snail safe
Yes
Cave breeder
No
Digs substrate
Yes
Jump risk
Yes
Natural history & care
Research-backed context for long-term aquarium care.
Lifespan
Not yet documented
Diet type
Omnivore
Minimum aquarium volume
80 L
Minimum footprint
75 × 35 cm
Accepted scientific name
Mikrogeophagus altispinosus
Alternative names
Bolivian Butterfly Cichlid
Native range
Bolivian and adjacent Brazilian drainage systems in the upper Madeira basin.
Natural habitat
Slow, shallow tropical waters with sand, silt, wood and marginal vegetation. Use fine substrate because the fish naturally sifts the bottom.
Diet & feeding
Feed small sinking pellets/granules and varied frozen/live invertebrates; ensure food reaches the lower water levels.
Breeding & sexing
Research-backed guidance for identifying sexes and reproductive behaviour.
Sexing
Males tend to be slightly larger with more extended fins, but sexing young or non-breeding fish is unreliable.
Breeding
Biparental open-substrate spawner, typically using a flat stone. Both parents tend eggs and fry.