Cichlids (Cichlidae)

Cockatoo Dwarf Cichlid

Apistogramma cacatuoides

The Cockatoo Dwarf Cichlid, also known as the Cockatoo Cichlid (Apistogramma cacatuoides), is a member of the Cichlidae family. This fish is one of the most striking representatives of South American cichlids and can enhance any freshwater aquarium. Its attractive coloration is not its only advantage; the Cockatoo also stands out for its ease of care, unpretentiousness, and friendly disposition, making it an excellent choice even for beginner aquarists.

Tank
from 54 L (14 gal), 60 L (16 gal) recommended
Temperature
22 – 29 °C (72 – 84 °F)
Size in aquarium
5 – 8 cm (2 – 3.1 in)
Acidity
pH 5–7
Natural rangeRange on the map
  • Ucayali River Basin
  • Amazon River Basin
  • Solimões River
  • Brazil
  • Colombia
  • Peru

Tank conditions

Plan the tank stocking
Temperature
22 – 29 °C (72 – 84 °F)
Water pH
Slightly acidic (5) – Neutral (7)
Water dH
Very soft (1) – Hard (15)
Water salinity
no salt (freshwater)
Size in aquarium
5 – 8 cm (2 – 3.1 in)
Lifespan
5 years
Temperament
Semi-peaceful including aggression during spawning / intraspecific conflicts
Toward small fish
not a predator
Required aquarium volume
from 54 L (14 gal), 60 L (16 gal) recommended
Lighting
dimmed
Substrate
sandy (regular, light)
Water flow
weak
Swimming level
near the bottom
Feeding
Meat / protein live, frozen, fresh
Keeping
Harem 1 male and several females
  • Lifespan. A lifespan to expect under good care, not a measured value: it depends heavily on tank volume, water quality and diet — and for selectively bred forms, on their origin as well.
  • Toward small fish. Based on the Predators category in the catalog or the temperament in the species parameters. “A risk to small fish” means the species is not a predator by habit, yet will swallow any fish that fits in its mouth.
  • Required aquarium volume. The 54 L minimum corresponds to a tank footprint of 60×30 см, для пары. The recommended 60 L is for the group size given under keeping mode.

Care and keeping

Description

Adults reach a length of 5 to 7 cm. Males are larger and have a prominent dorsal fin, shaped like a crest, which, like the tail, is brightly colored in fiery tones. It is this unique appearance that gave the species its common name "Cockatoo." Females are significantly smaller and their coloration is much more subdued. Selective breeding forms have gained particular popularity, bearing prefixes to their names indicating their predominant coloration: "Sunset," "Double Red," "Triple Red," "Gold," "White Gold," "Orange Flash," and "Albino."

Habitat

The natural habitat of this fish is located in South America, covering the Ucayali and Amazon river basins in Peru, as well as the Solimões River and its tributaries in western Brazil. They prefer areas with slow currents, flooded tropical forest sections, and swamps. In their natural environment, the waters are rich in fallen leaves, fruits, and tree branches, which give the water a rich brownish tint due to the abundance of tannins.

Behavior and Compatibility

This fish is distinguished by its peaceful and calm temperament, allowing it to coexist well with most species of similar size and temperament. To prevent intraspecific conflicts, it is recommended to keep one male with several females. It is also not advisable to keep them with other Apistogramma species, as there is a high risk of hybrid offspring, which is best left to experienced breeders.

Care and Maintenance

Most Cockatoo Cichlids available in European and Asian markets are the result of breeding on commercial fish farms. Over many generations, they have adapted to artificial aquarium environments, successfully adjusting to various water parameters. Aquarium decor also does not play a decisive role and can be chosen according to the aquarist's preferences. For those who wish to recreate a semblance of their natural habitat, it is recommended to use a sandy substrate, several pieces of driftwood covered with moss or ferns, as well as rooted and floating plants. Lighting should be subdued. Adding beech, oak, or Indian almond leaves will help give the water a characteristic "tea" tint. A similar effect can be achieved using special essences. Before placing leaves in the aquarium, they are first dried and then soaked until they sink. As for Indian almond (its leaves and bark), they are most often supplied already prepared for use.

Diet

This species is carnivorous, and in natural conditions, their diet consists of benthic invertebrates, small aquatic insects and their larvae, and crustaceans. In a home aquarium, it is recommended to supplement their diet with live or frozen foods such as bloodworms, Daphnia, or Artemia. However, these fish generally adapt well to dry sinking foods in the form of flakes or granules with a high protein content, which serves as a substitute for meat-based food.

Breeding and Reproduction

Under favorable conditions, such as suitable hydrochemical composition and water temperature, the likelihood of fry appearing is very high. The chances significantly increase when fish are kept in soft, slightly acidic water. At the beginning of the breeding period, the male may show attention to several females simultaneously, and each of them is capable of producing offspring. In such cases, it is important to provide a sufficient number of shelters, matching the number of females, and positioned at some distance from each other. During spawning, the female lays eggs in secure shelters and stays near the clutch to protect it. After the fry emerge, she continues to care for them, protecting them from others. The male also participates in protecting the offspring, but sometimes he becomes overly aggressive, and then he has to be temporarily moved to a separate aquarium.

Diseases

The main cause of most diseases in these fish is unsuitable keeping conditions and poor-quality nutrition. If initial symptoms are observed, it is first necessary to check water parameters and the concentration of dangerous substances such as ammonia, nitrites, and nitrates. If the indicators deviate from the norm, they should be brought back into order, and only then should treatment begin.

How to choose

When choosing Cockatoo Dwarf Cichlids, pay attention to the fish's overall activity and the condition of their skin. Healthy individuals should be curious, have clean fins without signs of damage, growths, or white, cotton-like spots. Avoid purchasing fish with sunken bellies, signs of emaciation, or unnaturally clamped fins, which may indicate chronic stress or infections. — Opt for individuals with bright, clear coloration that matches the chosen color morph. — Carefully inspect the condition of their eyes; they should be clear, without cloudiness. — Observe their behavior: healthy fish actively explore the bottom and hiding places, rather than constantly hiding in a corner or near the water surface. — Ask the seller about the keeping conditions and the type of food the fish are accustomed to, to minimize stress during relocation.

Compatibility

There are no pair reviews for this species yet — check tankmates in the matcher.

All tankmates

Plants and this fish

Matching water does not mean the plant will stay intact.

Frequently asked questions

The essentials: size, tank volume, water parameters and care

How big does Cockatoo Dwarf Cichlid get?

An adult reaches 5–8 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Cockatoo Dwarf Cichlid need?

The recommended volume is 60 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Cockatoo Dwarf Cichlid need?

Temperature 22–29 °C, pH 5–7, hardness 1–15 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does Cockatoo Dwarf Cichlid live?

Around 5 years when kept properly. Lifespan depends directly on tank volume, water quality and a varied diet.

Is Cockatoo Dwarf Cichlid aggressive?

Temperament: semi-peaceful (including aggression during spawning / intraspecific conflicts). Keep this in mind when choosing tank mates.

How many Cockatoo Dwarf Cichlid should be kept together?

Recommended setup: harem (1 male and several females). Ignoring this is a common cause of stress and disease.

What does Cockatoo Dwarf Cichlid eat?

Diet type: meat / protein (live, frozen, fresh). Feed small portions that are finished within a couple of minutes — overfeeding does more harm than underfeeding.

What is the scientific name of Cockatoo Dwarf Cichlid?

The scientific name of the species is Apistogramma cacatuoides, family Cichlids (Cichlidae).

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Other scientific names and conservation status

Categories
Cichlids
Conservation status
Least concernLC