Apistogramma Marmor (Marbled Apisto)

Apistogramma erythrura

Cichlids - South American

The Marbled Apisto is a beautiful, diminutive South American dwarf cichlid. Like most Apistogramma species, they are bottom-dwelling micropredators that naturally sift through fine sand and leaf litter for food. They require soft, acidic water, gentle flow, and plenty of visual barriers like driftwood and caves to feel secure. As harem breeders, a typical setup includes one male and several females.

Apistogramma Marmor (Marbled Apisto) At a Glance

Adult Size7.5 cm
Body ShapeCompressed
Growth RateModerate
TemperamentMostly Peaceful
Water TypeFreshwater Only
Flow PreferenceLow
Waste OutputLow
StockingSolo or group

Apistogramma Marmor (Marbled Apisto) Tank Requirements

Minimum Volume60 L
Minimum Length60 cm
FlowLow
Water TypeFreshwater Only
Must-Haves in the Tank
Sand (Sifters)Leaf Litter/BlackwaterDriftwood (Digestion/Hiding)
Stocking calculator

Will Apistogramma Marmor (Marbled Apisto) fit in your tank?

Care guides tell you what Apistogramma Marmor (Marbled Apisto) needs, the next question is whether your tank can safely provide it. Test Apistogramma Marmor (Marbled Apisto) against your tank size, maintenance needs, and the fish you already keep before you buy.

Apistogramma Marmor (Marbled Apisto)
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Apistogramma Marmor (Marbled Apisto) Water Parameters

Temperature2428°C
pH5.57
Hardness110 dGH

Apistogramma Marmor (Marbled Apisto) Temperament & Compatibility

Aggression LevelMostly Peaceful
4/10
Where They Swim
Surface
Mid-level
Bottom
Stocking Guidelines
Keep at Least1 (solo is fine)
Max per TankNo limit
Can Live Alone?Yes
Behavior Traits
Shrimp EaterFry PredatorTerritorial (Defends specific area)

Apistogramma Marmor (Marbled Apisto) Varieties

Each variety inherits the species defaults above. Only differences are highlighted.

Male

Males are larger, display vibrant marbled patterns, and develop extended fin rays. They are highly territorial towards other males. In an aquarium under 3 feet (90cm) in length, strictly one male per tank is recommended.

Differs in 3 traits from base species

Also known as: Show Male, Buck

TemperamentSemi-Aggressive
StockingSolo only
Behavior Traits
Territorial (Defends specific area)Shrimp EaterFry PredatorAggressive to same species/look-alikes

Female

Females are significantly smaller and drabber in color, turning bright yellow with high-contrast black markings when breeding. They are generally peaceful but become fiercely protective of their breeding cave and fry.

Differs in 3 traits from base species

Also known as: Hen, Yellow Female

Adult Size4.5 cm
TemperamentMostly Peaceful
Behavior Traits
Shy / Slow Moving (Easily Stressed)Shrimp EaterFry Predator

Apistogramma Marmor (Marbled Apisto) Care Guide Summary

The Apistogramma Marmor (Marbled Apisto), scientifically known as Apistogramma erythrura, belongs to the Cichlids - South American family group. Adults reach a maximum size of approximately 7.5 cm and have a compressed body shape with a moderate growth rate. Classified as mostly peaceful, this species primarily occupies the bottom zone of the aquarium and produces a low level of biological waste.

To thrive, the Apistogramma Marmor (Marbled Apisto) requires a freshwater only aquarium with a minimum volume of 60 litres and a tank length of at least 60 cm. Water temperature should be maintained between 24°C and 28°C, with a pH range of 5.57 and a general hardness of 110 dGH. A low water flow is preferred.

Due to its specialist needs, the Apistogramma Marmor (Marbled Apisto) is best suited for fishkeepers who can provide a carefully planned setup. This species is available in 2 varieties: Male and Female. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.

Apistogramma Marmor (Marbled Apisto) Habitat Setup

When setting up an aquarium for the Apistogramma Marmor (Marbled Apisto), a low water flow best suits their natural preferences. Because this species occupies the bottom zone, the aquarium layout should prioritise sufficient floor space with hiding spots among rocks, wood, or dense planting. Useful additions include a sand substrate to accommodate their sifting behaviour, driftwood, which can serve as both a hiding place and a dietary supplement, and leaf litter or blackwater tannins to replicate their natural soft-water habitat.

Apistogramma Marmor (Marbled Apisto) Compatibility Notes

Classified as mostly peaceful, the Apistogramma Marmor (Marbled Apisto) is adaptable and can be kept singly or in a small group, offering flexibility when planning a community tank. When choosing tankmates, ornamental shrimp are not safe companions and territorial behaviour may cause issues if hiding spots or floor space are limited. Selecting tankmates that favour different water layers from the bottom zone can help reduce competition and territorial overlap.

Apistogramma Marmor (Marbled Apisto) Recommended Tank Sizes

Standard aquarium sizes that meet the minimum volume and length requirements for Apistogramma Marmor (Marbled Apisto).

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Apistogramma Marmor (Marbled Apisto) Feeding & Diet Considerations

The Apistogramma Marmor (Marbled Apisto) will hunt and eat ornamental shrimp, making it unsuitable for shrimp-focused setups and will eat fry, so breeding efforts in the same tank are unlikely to succeed.

Frequently Asked Questions About Apistogramma Marmor (Marbled Apisto)

How big does Apistogramma Marmor (Marbled Apisto) get?

Apistogramma Marmor (Marbled Apisto) (Apistogramma erythrura) typically reaches a maximum adult size of approximately 7.5 cm. They have a compressed body shape and a moderate growth rate.

What tank size does Apistogramma Marmor (Marbled Apisto) need?

A minimum aquarium volume of 60 litres and a tank length of at least 60 cm are recommended for Apistogramma Marmor (Marbled Apisto). This ensures enough swimming space and helps maintain stable water conditions.

What water parameters does Apistogramma Marmor (Marbled Apisto) need?

Apistogramma Marmor (Marbled Apisto) thrives in freshwater only conditions with a temperature range of 24–28°C, a pH between 5.5 and 7, and a general hardness of 1–10 dGH. A low water flow is preferred.

Is Apistogramma Marmor (Marbled Apisto) peaceful or aggressive?

Apistogramma Marmor (Marbled Apisto) is classified as mostly peaceful with an aggression score of 4 out of 10. They are generally well-suited to peaceful community tanks.

Can Apistogramma Marmor (Marbled Apisto) live alone?

Yes, Apistogramma Marmor (Marbled Apisto) can be kept singly or in a group. They are flexible and adapt well to both setups.

Is Apistogramma Marmor (Marbled Apisto) safe with shrimp?

No. Apistogramma Marmor (Marbled Apisto) is known to eat ornamental shrimp and is not recommended for shrimp tanks. Even larger shrimp species like Amano Shrimp may be at risk.

Does Apistogramma Marmor (Marbled Apisto) have any special tank requirements?

Yes. Apistogramma Marmor (Marbled Apisto) benefits from sand (sifters), leaf litter/blackwater, and driftwood (digestion/hiding) in the aquarium. These features help replicate their natural habitat and promote overall health and well-being.


Fish Similar to Apistogramma Marmor (Marbled Apisto)

Apistogramma Resticulosa Marmor

Apistogramma cf. resticulosa "Marmor"

Cichlids - South American
6 cm Mostly Peaceful

A striking, small South American dwarf cichlid originating from the Rio Mamoré basin. The 'Marmor' (marbled) variant is highly sought after for its metallic colors. They are peaceful community fish but become highly territorial when breeding. They require a soft, sandy substrate which they sift for food, and thrive in soft, acidic water with plenty of cover.

Apistogramma Orange-tail

Apistogramma cf. eunotus "Orange-tail"

Cichlids - South American
7.5 cm Semi-Aggressive

A beautiful South American dwarf cichlid known for its personality and stunning coloration. They are micropredators that naturally inhabit slow-moving tributaries with sandy bottoms and leaf litter. While generally peaceful towards non-cichlid tank mates (like tetras and pencilfish), they are highly territorial among their own kind and will readily hunt dwarf shrimp.

Apistogramma Resticulosa Mamor

Apistogramma cf. resticulosa Mamor

Cichlids - South American
4.5 cm Mostly Peaceful

The Apistogramma cf. resticulosa 'Mamor' is a peaceful but territorial dwarf cichlid originating from the Mamoré River basin in South America. Known as the 'Thin-line Dwarf Cichlid', they require soft, sandy substrates for sifting and complex environments with driftwood and leaf litter to establish territories. While generally peaceful in community tanks, they become highly aggressive during spawning and will hunt dwarf shrimp.

Apistogramma Parrot

Apistogramma sp. "Parrot"

Cichlids - South American
7.5 cm Semi-Aggressive

Apistogramma sp. 'Parrot' (often traded under its German name, 'Papagei') is a beautiful South American dwarf cichlid from the Peruvian Amazon. Like most Apistogrammas, they are bottom-dwelling micropredators that thrive in soft, slightly acidic water with a sandy substrate and leaf litter. Males are highly colorful and territorial, while females are smaller and turn an intense, warning yellow during breeding.

Barlow's Dwarf Cichlid (Apistogramma Maulbrüter)

Apistogramma barlowi

Cichlids - South American
6.5 cm Mostly Peaceful

A unique South American dwarf cichlid officially described as Apistogramma barlowi (2008), but widely known in the hobby by its trade name 'Maulbrüter' (German for mouthbrooder). Unlike most Apistogramma species which exclusively spawn in caves, this species is a facultative, biparental mouthbrooder. They thrive in soft, acidic water and require fine sandy substrates.

Hongsloi Apistogramma

Apistogramma hongsloi

Cichlids - South American
6 cm Semi-Aggressive

A striking dwarf cichlid native to the Orinoco River basin in South America. They are popular for their vivid red, yellow, and blue colors. Best kept in blackwater setups with soft, acidic water and plenty of leaf litter. They form harems and require sand substrate, as they sift sand through their gills to find food.