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Mesonauta festivus

Flag Cichlid

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Flag Cichlid (Mesonauta festivus)
Flag Cichlid (Mesonauta festivus)JJPhoto

Quick factsEdit

Max size
100mm SL3.9in SL
Aquarium size
120 × 38cm48 × 15in
Temp
24–28°C75–82°F
pH
6.0–8.0
Hardness
0–5dGH

Difficulty6 of 8 measures

Moderate

Rated moderate because it needs a well-established tank and stable water.

How the rating is worked out

Space
large tank
Water
needs soft water
Temp
needs a steady temperature
Diet
unknown
Temperament
peaceful
Social
unknown
Compatibility
fine with others

Other demands

Each of these can raise the rating on its own, whatever the measures above say.

Hardiness
needs a well-established tank

The flag cichlid, Mesonauta festivus, is a cichlid recorded from Venezuela, Peru, Brazil, Bolivia and Paraguay. It lives in well planted, slower-moving waters. Flag cichlids are found in most aquatic stores, but the fish usually sold under the name is M. insignis. It is peaceful, but becomes more aggressive when breeding.

Distribution

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Widespread through much of South America, it's been recorded from Peru, Brazil, Bolivia and Paraguay. It's found in numerous river drainages, including the Rio Tapajós, Rio Jamari, Rio Madre de Dios, Rio Guaporé, Rio Mamoré, Rio Paraguay and Rio Paraná.

Usually foound in well planted habitats in slower moving waters.

Aquarium size

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Standard length
100mm SL3.9in SL
Aquarium base
120 × 38cm48 × 15in
Volume
~137litres~36US gal

120 ∗ 38 ∗ 30 cm48 ∗ 15 ∗ 12 in - ~137 litres~36 US gal

Maintenance

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Well planted tank with moderate water flow. Bogwood and branches can be used for decor. Sandy subtrate is preferred. Lighting should not be too strong.

Water conditions

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Temperature
24–28°C75–82°F
pH
6.0–8.0
Hardness
0–5dGH

Temperature: Occurs in a wide rande of temperatures in the wild. 76 - 82°F (24 - 28°C) is suggested in the aquarium.

pH: 6.0 - 8.0 will be tolerated but a pH of around 6.5 is suggested.

Hardness: Up to 5°H

These recommendations come from this profile’s own figures. They contain affiliate links, so we may earn a commission.

It's a generalistic omnivore by nature. Wild fish feed on worms, crustaceans, plant matter (apparently including algae) and other zoobenthos. Accepts the majority of prepared foods. This should be supplemented with live foods such as bloodworm and brineshrimp and spme vegetable matter.

Behaviour and compatibility

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Peaceful cichlid, although becomes more aggressive when breeding. Can be kept with other peaceful cichlids such as geophagus and apistogramma and other peaceful community species such as tetras, barbs and small catfish.

Sexual dimorphism

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Male is larger and his extensions to dorsal and anal fins.

Reproduction

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Breeding takes place a flat stone or similar area. Once the breeding area is prepared, eggs will be deposited by the female and then fertilised by the male. In excess of 200 eggs may be laid. Both fish guard the eggs and when the fry hatch two to three days later, they are transferred to a pit where the parents keep them until they become free-swimming. This is usually 3 - 4 days after hatching. Both fish assume parental duties but can be easily spooked often leading to them eating the fry. It is advisable that the breeding tank be placed in a quiet location and distrubed as little as possible.

Fry can be fed on newly-hatched brineshrimp and powdered fry foods until large enough to take bigger foods.

Notes

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Flag Cichlids are enduringly popular in the hobby and can be found in most aquatic stores. Interestingly, this species is not the species most commonly sold as the Flag cichlid. It is usually m. insignis that makes it into dealers tanks.

Distribution

Profile completeness20 of 24

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