Flag Acara is a peaceful dwarf cichlid from the Amazon basin, ideal for community tanks thanks to its gentle temperament and straightforward care
Overview
The Flag Acara (Laetacara curviceps) is one of the most peaceful dwarf cichlids from South America, deservedly popular among aquarists of all experience levels. In the wild, this fish inhabits slow-moving waters of the Amazon basin — shallow tributaries, backwaters, and flooded forest areas where the water is stained with humic acids.
Adults reach a size of 6–8 cm, making them one of the most compact cichlids available. The body is moderately deep and slightly compressed laterally, with a characteristic dark stripe running from the eye to the base of the tail. Coloration ranges from olive-grey to bluish-green with a pearlescent sheen, and during spawning the colors become particularly intense. With proper care, they can live for 5–7 years.
Unlike many cichlids, the Flag Acara has a truly calm disposition, allowing it to be kept in community tanks with peaceful tankmates. In terms of temperament, it is noticeably calmer than, for example, the Cockatoo Dwarf Cichlid or the Kribensis.
Tank Requirements
A pair of Flag Acaras can be kept in an aquarium of at least 80 liters, but for a group with other species, 120–150 liters is preferable. Optimal water parameters are: temperature 24–28°C, pH 6.0–7.5, and hardness (GH) 5–12. The fish adapts well to various conditions, but the best results are achieved in soft, slightly acidic water.
When setting up the aquarium, it is important to replicate their natural environment. Use fine sandy substrate, driftwood, and rocks to create hiding spots and visual barriers. Live plants are essential — Amazon swords, Anubias, and Cryptocorynes work particularly well. Dense planting along the sides and back of the tank with open swimming space in the center is the ideal layout.
Subdued lighting is preferable, and adding Indian almond leaves or alder cones will help create blackwater conditions where the fish feel most comfortable and display their brightest coloration.
Feeding and Diet
The Flag Acara is an omnivorous fish with a good appetite that causes no feeding difficulties. The staple diet can consist of high-quality small-sized cichlid pellets or flakes. However, to maintain health and vibrant coloration, it is essential to regularly supplement the diet with live and frozen foods: bloodworms, brine shrimp, daphnia, and cyclops.
Feed twice daily in small portions that the fish consume within 2–3 minutes. A weekly fasting day is beneficial. A varied diet not only improves the fish's wellbeing but also encourages more active behavior and expression of natural instincts.
Care and Maintenance
The Flag Acara is a fairly hardy fish with a care level of 2 out of 5, making it suitable even for beginning aquarists. The key requirement is stability of water parameters. Weekly water changes of 20–30% are mandatory. Filtration should be efficient but without strong current — in nature, these fish live in calm waters.
Regularly monitor ammonia, nitrite, and nitrate levels using test kits. Vacuum the substrate during each water change, especially in feeding areas. Watch the temperature closely — sudden fluctuations can cause stress and weakened immunity.
When properly maintained, Flag Acaras rarely fall ill. However, under stress or deteriorating water quality, they may be susceptible to ich and bacterial infections. Quarantining new fish before adding them to the tank is an essential preventive measure.
Compatibility
The Flag Acara is one of the most peaceful cichlids, which opens up many possibilities for choosing tankmates. It gets along wonderfully with small characins such as Neon Tetras, Ember Tetras, and Black Neon Tetras. Excellent companions also include bottom dwellers like Panda Corydoras or Sterbai Corydoras, as well as Otocinclus.
Among dwarf cichlids, you can house them with Borelli's Dwarf Cichlid or Bolivian Rams, provided the tank is large enough and has plenty of hiding spots.
Avoid keeping them with large or aggressive fish, as well as active species that may outcompete them for food. During spawning, the pair becomes territorial and will chase other fish away from the clutch, but they rarely display serious aggression.
Breeding
Breeding Laetacara curviceps in the aquarium is not particularly difficult and is quite achievable even for aquarists with moderate experience. The fish form stable pairs, and the best way to obtain a pair is to raise a group of 6–8 juveniles and allow them to choose their own partners.
To stimulate spawning, raise the temperature by 1–2°C and increase the frequency of water changes using soft, slightly acidified water. The female lays 100–200 eggs on a pre-cleaned flat surface — a rock, driftwood, or a broad plant leaf.
Both parents actively care for the clutch, fanning it with their fins and removing unfertilized eggs. The larvae hatch in 3–4 days, and after another 4–5 days the fry become free-swimming. First foods should be baby brine shrimp and microworms.
Parental behavior in this species is very well developed: both parents guard the fry and lead the school of juveniles around the aquarium for several weeks. This is one of the most fascinating spectacles that the aquarium hobby has to offer.