Cockatoo Dwarf Cichlid

Apistogramma cacatuoides

Cichlids - South American
Reviewed by Guidarium Editorial DeskUpdated April 28, 2026

A highly popular and vibrant dwarf cichlid native to the Amazon basin. Named for the male's flamboyant, crest-like dorsal fin. They are cave-spawners that require a fine sand substrate (which they sift through their gills) and plenty of hiding spots. While generally peaceful in community tanks, they become fiercely territorial when breeding.

Cockatoo Dwarf Cichlid At a Glance

Adult Size7.5 cm
Body ShapeCompressed
Growth RateModerate
TemperamentSemi-Aggressive
Water TypeFreshwater Only
Flow PreferenceLow
Waste OutputLow
StockingSolo or group

Cockatoo Dwarf Cichlid Tank Requirements

Minimum Volume60 L
Minimum Length60 cm
FlowLow
Water TypeFreshwater Only
Must-Haves in the Tank
Sand (Sifters)Driftwood (Digestion/Hiding)Leaf Litter/Blackwater
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Will Cockatoo Dwarf Cichlid fit in your tank?

Care guides tell you what Cockatoo Dwarf Cichlid needs, the next question is whether your tank can safely provide it. Test Cockatoo Dwarf Cichlid against your tank size, maintenance needs, and the fish you already keep before you buy.

Cockatoo Dwarf Cichlid
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Cockatoo Dwarf Cichlid Water Parameters

Temperature2428°C
pH67.5
Hardness210 dGH

Cockatoo Dwarf Cichlid Temperament & Compatibility

Aggression LevelSemi-Aggressive
5/10
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
Territorial (Defends specific area)Fry PredatorShrimp Eater

Cockatoo Dwarf Cichlid Varieties

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

Male

Males are larger, display the spectacular 'cockatoo' dorsal fin, and exhibit vivid colors. Males are highly territorial toward other male Apistogrammas. Usually kept singly or as the patriarch of a harem (one male to multiple females).

Differs in 4 traits from base species

Also known as: Double Red, Triple Red, Orange Flash, Super Red

Adult Size7.5 cm
TemperamentSemi-Aggressive
StockingSolo only
Behavior Traits
Territorial (Defends specific area)Aggressive to same species/look-alikesFry PredatorShrimp Eater

Female

Females are significantly smaller and predominantly yellow-grey. When breeding, they turn a striking, vibrant yellow and become fiercely protective of their cave and fry, to the point of chasing away the male or much larger fish.

Differs in 3 traits from base species

Also known as: Yellow Apisto, Brooding Female

Adult Size5 cm
TemperamentSemi-Aggressive
StockingNo limit

Cockatoo Dwarf Cichlid Care Guide Summary

The Cockatoo Dwarf Cichlid, scientifically known as Apistogramma cacatuoides, 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 semi-aggressive, this species primarily occupies the bottom zone of the aquarium and produces a low level of biological waste.

To thrive, the Cockatoo Dwarf Cichlid 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 67.5 and a general hardness of 210 dGH. A low water flow is preferred.

Due to its specialist needs, the Cockatoo Dwarf Cichlid 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.

Cockatoo Dwarf Cichlid Habitat Setup

When setting up an aquarium for the Cockatoo Dwarf Cichlid, 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.

Cockatoo Dwarf Cichlid Compatibility Notes

Classified as semi-aggressive, the Cockatoo Dwarf Cichlid 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.

Who Cockatoo Dwarf Cichlid Is Actually For

Cockatoo Dwarf Cichlid is best for a fishkeeper who wants a species that can settle into a calmer community setup and can provide someone who understands its individual space requirements. It makes the most sense for a hobbyist who will actually build around its needs, especially sand.

The most common mistake is treating Cockatoo Dwarf Cichlid like any other community fish and skipping the soft sand it needs to forage safely. Another frequent problem is forcing it into an over-busy community when it would do better with more room or more deliberate tankmate choices.

Cockatoo Dwarf Cichlid Recommended Tank Sizes

Standard aquarium sizes that meet the minimum volume and length requirements for Cockatoo Dwarf Cichlid.

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Cockatoo Dwarf Cichlid Feeding & Diet Considerations

The Cockatoo Dwarf Cichlid 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 Cockatoo Dwarf Cichlid

How big does Cockatoo Dwarf Cichlid get?

Cockatoo Dwarf Cichlid (Apistogramma cacatuoides) 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 Cockatoo Dwarf Cichlid need?

A minimum aquarium volume of 60 litres and a tank length of at least 60 cm are recommended for Cockatoo Dwarf Cichlid. This ensures enough swimming space and helps maintain stable water conditions.

What water parameters does Cockatoo Dwarf Cichlid need?

Cockatoo Dwarf Cichlid thrives in freshwater only conditions with a temperature range of 24–28°C, a pH between 6 and 7.5, and a general hardness of 2–10 dGH. A low water flow is preferred.

Is Cockatoo Dwarf Cichlid peaceful or aggressive?

Cockatoo Dwarf Cichlid is classified as semi-aggressive with an aggression score of 5 out of 10. They can work in community setups but may clash with certain tankmates.

Can Cockatoo Dwarf Cichlid live alone?

Yes, Cockatoo Dwarf Cichlid can be kept singly or in a group. They are flexible and adapt well to both setups.

Is Cockatoo Dwarf Cichlid safe with shrimp?

No. Cockatoo Dwarf Cichlid 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 Cockatoo Dwarf Cichlid have any special tank requirements?

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

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
April 28, 2026
Last updated
April 28, 2026
Issues or corrections?
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