Julidochromis regani

The fish has an elongated body with a pronounced, convex head. Among the species variations, there are individuals with a slightly different head shape. A very long dorsal fin extends almost the entire length of the back. The rounded tail is adorned with a white edge. The main coloration is yellow, with several rows of longitudinal dark brown stripes.

This fish is endemic to the African Lake Tanganyika and is not found in any other bodies of water. Its natural habitat is areas with sandy bottoms where a large number of stones are scattered. Some other species of this genus prefer rocky coastal zones.

This fish exhibits territorial behavior and can be aggressive towards conspecifics, but it can coexist peacefully with other cichlids from Lake Tanganyika that have a similar temperament. Young individuals usually develop together and eventually form stable male/female pairs that remain inseparable throughout their lives. Formed pairs become particularly intolerant of other members of their species.

To decorate the aquarium, an imitation of Julidochromis regani's natural environment is best. This species will require a spacious and long aquarium, equipped with a rocky bottom arranged in ledges. Grottos, caves, and crevices can be created using stones and rock fragments. As additional shelters, broken clay pots or hollow bricks can be used, for example. A sandy substrate is recommended. The presence of live plants is not mandatory. The water in the aquarium should be slightly alkaline, hard, or medium-hard. More detailed information on water parameters and methods for changing them (pH, GH) is provided in the "Hydrochemical composition of water" section. Since plants are not included in the design, the main burden of maintaining biological balance falls on the filtration system. You should purchase the most powerful filter that fits your financial capabilities. Other necessary equipment includes an aerator, a heater, and a lighting system.

The diet of cichlids should preferably include live or frozen foods, such as bloodworms or daphnia. The basis of the diet consists of high-protein foods, to which plant components must be added. Once a week, dry foods, such as flakes or pellets, can be offered as a supplement.

Breeding these fish is relatively simple but has its peculiarities. It is advisable to acquire an already established pair. Buying a male and female separately does not guarantee pair formation: the fish may not be compatible, which can lead to the male harassing the female, often resulting in her death. Spawning in Julidochromis regani occurs covertly, without a pronounced courtship period. The female lays eggs in her chosen shelter, and the appearance of fry can be a surprise to the aquarist. Parents do not harm their offspring, so there is no need to hastily transfer them to a separate tank. They can remain together until the fry reach a size of 2–2.5 cm; at this stage, it will be necessary to consider their further keeping.

The main causes of diseases in fish are unsuitable keeping conditions and poor-quality food. All other problems, including bacterial or fungal infections, are merely consequences of these factors. More detailed information on disease symptoms and treatment methods is available in the "Diseases of aquarium fish" section.

When selecting individuals, preference should be given to young fish, as adult pairs adapt extremely poorly to new conditions and can show aggression towards each other. Healthy fish should be active, have clean fins without signs of damage or film, and a plump body without a sunken belly. Avoid purchasing individuals that appear apathetic, stay near the water surface, or have visible wounds, as this often indicates the consequences of intraspecific conflicts or poor keeping quality in the store. It is recommended to acquire a group of 5–6 young individuals so that they can independently form a stable pair, after which the excess fish should be removed to avoid fatal skirmishes.