Blue Gularis

Adult specimens of this fish can reach up to 12 cm in length. Males are typically larger than females, feature brighter coloration, and have more pronounced, elongated fins. Their bodies are colored in a bluish hue, transitioning to dark brown or purple towards the head. The fins and caudal fin are adorned with distinctive speckles and lines, as well as a broad reddish stripe.

The natural habitat of the Blue Gularis spans modern-day Nigeria and Cameroon in Africa. These fish inhabit swampy areas of tropical forests along the coastal zone – river deltas, small streams, and shallow lakes. The water in these bodies of water can often be brackish due to their proximity to the sea.

These fish peacefully coexist with representatives of other non-aggressive species of similar size. However, within a single group, relationships can be less harmonious. Males tend to compete with each other for territory and females, which can lead to fierce, though rarely seriously injurious, skirmishes. Ultimately, a subdominant male risks becoming an outcast. Therefore, in small to medium-sized aquariums (80–140 liters), it is recommended to keep one male with 3–4 females. Such a female-to-male ratio has practical significance: during spawning, the male becomes excessively active in his courtship, and attention distributed among several partners helps reduce his excessive persistence.

For a group consisting of 3–4 fish, an aquarium of at least 80 liters will be required. When decorating, a dark substrate is preferred, as well as areas with dense aquatic vegetation, including floating species, and several shelters, for example, in the form of driftwood. It is important to consider some features of the Blue Gularis when setting up the aquarium: these fish tend to jump out of the water and do not tolerate strong currents well. Consequently, a secure lid must be provided, and equipment (especially filters) should be set up to minimize water movement. Otherwise, this species is quite undemanding and does not require special care. To maintain favorable living conditions, it is sufficient to perform weekly water changes of 15–20% of the volume with fresh water and regularly clean the substrate of organic waste.

The basis of these fish's diet should consist of frozen or live foods, such as bloodworms, daphnia, or brine shrimp. Dry foods are used only as a supplementary element of the diet and should not be its foundation.

For successful spawning, the following water parameters are desirable: pH no higher than 6.5, dGH from 5 to 10, and the temperature should be maintained at 23–24°C. Dense thickets of low-growing, fine-leaved plants or mosses are placed on the bottom of the aquarium, among which the fish lay their eggs. Lighting should be subdued. It should be noted that parental instincts in this species are poorly developed; to save the eggs from being eaten, it is advisable to move them to a separate tank immediately after spawning is complete (which usually lasts about a week). Fry emerge from the eggs in approximately 21 days, with the duration of the incubation period depending on temperature. During this period, the appearance of a white film on the eggs poses a particular threat — this is a pathogenic fungus, and without timely measures, the entire clutch can perish.

Health problems in these fish arise only in the presence of injuries or keeping in unsuitable conditions, which leads to a weakening of the immune system and the subsequent occurrence of various diseases. At the first signs of illness, it is necessary first to check the water parameters for exceeding permissible values or the presence of toxic substances (such as nitrites, nitrates, ammonia). If deviations are found, all indicators should be normalized, and then treatment should begin. More detailed information on symptoms and treatment methods is available in the "Diseases of Aquarium Fish" section.

When purchasing, choose active specimens with clean fins and no visible damage or whitish film on their bodies. Healthy fish should have clear eyes and natural, vibrant coloration. Avoid specimens that stay at the surface, breathe heavily, or appear emaciated. Since the species exhibits territorial behavior, it is recommended to clarify the sex of the purchased individuals in advance to avoid conflicts in the aquarium, especially when buying multiple males.