Flag cichlid

Mesonauta festivus

Wild range: Amazon River Basin (South America)

At a glance: Flag cichlid care

Compiled reference information. Review the care notes and original sources below.

What temperature is listed for Flag cichlid?

The compiled profile lists 22.0–28.0 °C for Flag cichlid (Mesonauta festivus). Check the original sources below for context and differing recommendations.

What tank size is listed for Flag cichlid?

The profile lists a minimum tank volume of 29.0 US gallons (110.0 liters). Volume alone does not establish suitability; consider dimensions, group size and other inhabitants alongside the full care notes.

What pH is listed for Flag cichlid?

The compiled profile lists a pH of 6.0–7.5. Review the cited care sources alongside the other water parameters in this profile.

Natural habitat

Festivum cichlids naturally inhabit slow-moving waters across several river basins, including the Amazon and Paraná. They are typically found in shallow areas rich in aquatic plants, where they can find cover and foraging opportunities. The waters they occupy range from clear to slightly stained with tannins, and they prefer conditions where they can seek refuge among submerged vegetation.

Where they are found

Native to areas of Brazil, Peru, and Colombia, particularly within the Amazon Basin. They are adaptable fish, frequently found in various water conditions associated with their natural habitat.

Aquarium care

For best care, provide a larger tank of at least 200 liters with a soft substrate and numerous hiding spots. Ensure water quality is maintained, with regular changes to avoid ammonia build-up. Plant the aquarium with sturdy plants, allowing ample swimming space.

Feeding

Festivum cichlids are not picky eaters and thrive on a varied diet. High-quality cichlid pellets or flakes serve as a good staple, supplemented with frozen foods like brine shrimp and bloodworms. Incorporating vegetable matter, such as blanched zucchini, enhances their diet.

Compatibility

While it is preferable to keep them in groups, mature Festivums can be reasonably aggressive when protecting their territory. They do best with medium to large tetras and cichlids that can handle moderate aggression. Smaller fish may be viewed as potential prey.

Breeding

Breeding Flag Cichlids in captivity can be rewarding. They are cavity spawners, often laying eggs on flat surfaces or rock overhangs. Providing adequate space and maintaining water quality are crucial for successful breeding.

Sources

Compiled from multiple independent care sheets — not copied from a single site.