Red-breasted Acara

These fish grow up to 5 cm in length. Their coloration is a combination of gray and red-blue hues. Their back is dark, while the belly has a rich red color, which served as the basis for one of the species' names. The fins and tail are adorned with blue speckles. Sexual dimorphism is not pronounced: males can be distinguished by a slightly more elongated and pointed anal fin. Otherwise, there are practically no visible differences between the sexes.

Its natural habitat is in South America, covering territories in Bolivia and western Brazil. In particular, this fish inhabits the Guaporé River basin, which serves as a natural border between these countries. In rivers, Laetacara dorsigera prefers areas with slow currents or calm backwaters. The bottom in its habitats is usually sandy, covered with fallen tree leaves, and abundant with snags.

This fish is characterized by a peaceful and calm disposition. It successfully coexists with other non-aggressive species of similar size. Excellent tankmates for it can be fish from the same habitat region, for example, many species of Characins. They prefer to be in a small group or, at least, in a pair.

For a small group consisting of 5–6 fish, the optimal aquarium volume starts from 80 liters. The setup can be quite simple: sandy substrate, several snags, and densely planted areas. Placing fallen tree leaves on the bottom will give the setup a natural look and tint the water with a natural brownish hue. This effect arises from the release of tannins as the leaves decompose. It is only important to ensure suitable water parameters (temperature and hydrochemical composition) and regularly maintain the aquarium. In most cases, this includes weekly partial water changes, removal of organic waste, and equipment prophylaxis.

Being an omnivorous species, this fish will readily accept most common foods in a home aquarium. These include dry flakes, granules, as well as live or frozen Artemia, Daphnia, and bloodworms. To maintain health, the diet should be varied and include several types of food, supplemented with plant additives, such as spirulina flakes.

Under favorable conditions, such as high water quality and varied nutrition, as well as the presence of suitable partners, Laetacara dorsigera regularly produces offspring. When the breeding season arrives, the male and female form a pair and choose a spawning site. This can be any smooth and clean surface, such as a flat stone. The female lays several dozen eggs. Both parents remain near the clutch, guarding it from any potential threat. Parental care continues even after the fry hatch.

The main cause of diseases often lies in the keeping conditions: if they go beyond acceptable limits, immunity decreases, making the fish vulnerable to various infections inevitably present in the environment. At the first suspicion of illness, it is important first of all to check the water parameters and ensure there are no dangerous concentrations of nitrogen cycle products. Often, restoring normal, suitable conditions promotes recovery. However, in some cases, medication may be required.

When choosing individuals, attention should be paid to their activity and the absence of visible damage: scales should be tightly pressed, fins — intact, without signs of destruction or white plaque. A healthy fish shows curiosity towards surrounding objects and actively responds to food. Avoid specimens with sunken bellies, signs of emaciation or unnaturally bloated abdomens, as well as fish that constantly hide in the corners of the aquarium or stay near the water surface, which may indicate stress or diseases. Given the external similarity with closely related species, such as Laetacara curviceps, it is recommended to carefully examine the coloration and fin shape, as misidentification is common in trade.