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Atahualpa Dwarf Cichlid

Apistogramma atahualpa

Native to northern Peru, specifically the Rio Nanay basin. It inhabits slow-moving forest streams, small tributaries, and flooded areas with highly ac.

Family
Cichlidae
Origin
South America: Rio Nanay basin in Peru.
Origin
Extra-Amazon South America
Tank use
Used in 0 tanks

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Species challenges
Water Temperature

23 °C - 29 °C

pH Value

5 - 6.5

Water type

Freshwater

Tank level

Bottom

Adult size

7 cm

Species description

Geographical Origin and Habitat: Native to northern Peru, specifically the Rio Nanay basin. It inhabits slow-moving forest streams, small tributaries, and flooded areas with highly acidic, blackwater conditions and sandy beds covered in leaf litter.

Taxonomy and Morphology: A member of the Cichlidae family, this dwarf cichlid features a robust body structure with a large head. Males reach a maximum length of 7.0 cm, while females are smaller, growing up to 5.0 cm.

Social Behavior: Territorially aggressive, especially during breeding. Males defend territories against rivals. They are best kept as a compatible pair or in a harem consisting of one male and several females.

Coloration and Sexual Dimorphism: Males exhibit a grayish-blue to yellowish body color with extended fin filaments. Females are smaller, less colorful, but turn bright yellow with distinct black markings when breeding.

Care, breeding and tankmates

Aquarium Setup: A tank of at least 70 liters is required with a soft sandy substrate. Provide numerous caves (e.g. coconut shells or ceramic pots) for spawning, along with driftwoods and dense plantings to block lines of sight.

Diet and Feeding: Primarily carnivorous. Prefers live or frozen foods such as brine shrimp, daphnia, and bloodworms. They can be reluctant to accept dry foods initially.

Water Quality: Demanding. Requires soft, acidic water: pH 5.0-6.5, GH under 5 dGH, and stable temperatures between 23°C and 29°C. Use peat or leaf litter to maintain appropriate water chemistry.

Compatibility and Cohabitation: Can be housed with small, peaceful dither fish like tetras. Avoid other territorial bottom dwellers (like other cichlids) to prevent aggressive territorial disputes.

Aquarium Breeding: Cave spawner. The female takes sole charge of egg care inside the cave and aggressively defends the fry. Feed the fry with freshly hatched brine shrimp nauplii.

Risks and Diseases: Highly sensitive to poor water conditions and nitrogenous waste. Prone to intestinal parasites. Frequent, gentle water changes are mandatory.

Fish profile

Temperament
Territoriale
Diet
Carnivoro
Tank level
Bottom
Minimum group
2
Adult size
7 cm
Minimum tank volume
70 L
GH
1 dGH - 5 dGH
KH
0 dKH - 3 dKH
TDS
n/a
Conductivity
n/a
Feeding frequency
1-2 volte al giorno
Bioload
Medio
Flow
Basso
Reproduction
Depone in cavità ombreggiate. La femmina difende le uova e gli avannotti con estrema aggressività.
Compatibility & tankmates
Territoriale durante il periodo riproduttivo; richiede molti nascondigli per ridurre l'aggressività.

Ecological Estimates & Biological Models

Trophic level
3.3 ± 0.4 se
Resilience
Medium (1.4 - 4.4 years)
Phylogenetic uniqueness (PD50)
0.5
Bayesian Length-Weight
a = 0.0182, b = 2.99
VulnerabilityLow vulnerability (10 / 100)

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

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Last updated: 06/13/2026