Boraras brigittae

Aquarium fish: Boraras brigittae (Boraras brigittae)
Size: 2 cm
Origin: Asia
Water temperature: 23-28 ° C
Aquarium volume: 40 l

Boraras brigittae (Boraras brigittae) – a tiny aquarium fish, one of the smallest representatives of the carp family.

Occurrence

Razbora Borneańska comes from Asia. The species lives mainly in smaller, slow-flowing rivers and wetlands of Borneo.

Characteristics and disposition

Razbora brigittae is only 2 cm long. Its body is colored red with a dark bluish stripe along the torso.

The fins are transparent with visible red and black stripes. Patterns and color intensity may vary depending on the population they come from. Males are a bit slender and have a distinctly brighter coloration. Females are slightly larger and fuller around the belly. They are herd fish and should be kept in an amount of at least 10.

In a larger group, they are bolder and look much more effective. Males, on the other hand, take on more vivid colors and show more interesting behavior by competing with each other for the favors of females. The fish are calm and shy towards other aquarium inhabitants.

Nutrition and feeding

Like other razors in the wild, they feed on small insects, worms, crustaceans and zooplankton. In the aquarium, they will eat dry ground food, but they should not be fed only with them.

Daily feeding of live or frozen foods with the addition of a good-quality dry mix will result in intense coloration and encourage fish to breed.

Aquarium

Despite their small size, they also need a place to swim. In addition, males temporarily occupy the territories during spawning. For a group of 10 individuals, a minimum 40-liter aquarium, densely planted with vegetation, will be appropriate. Decorations made of roots, branches, dry leaves and any matter that releases tannins and humic compounds into the water, such as alder cones, will also be desirable.

Bornean razors do not like too strong water current and too bright lighting (the light can be suppressed by e.g. floating plants). They feel best in soft and acidic water. They are sensitive to higher nitrate concentrations. In a social aquarium we can keep them only with fish slightly larger than themselves and calmly disposed, e.g.

pygmy cuirass , otosek , galaxy razbora . spotted razbora . The perfect company will also be dwarf shrimps, e.g. red cherry, babaulti.

Breeding

The species is one of the spreaders and is not prone to caring for it.

In a well-kept, mature aquarium, small numbers of young fish may appear without our intervention. However, if we want to get a larger amount of fry, an additional spawning tank of about 15 l will be required. The aquarium is shaded, and on the bottom we put a net with tiny eyes, so that the spawn passes between them and the adult fish do not get into it. Acidic water is required 5-6.5 ph and soft 1-5 ° dGH at 26-28 ° C. Put a large amount of moss or other small-leaved plant into the aquarium so that it fills about half of the available space.

Filtration is not necessary, but it won’t hurt to use a small sponge filter. In the evening, transfer two or three pairs of razborek to the prepared tank. Slowly acclimatizing them to the new surroundings and water parameters. Spawning usually takes place the next morning. During spawning, males compete with each other – they swim around each other stretching their fins or catch a competitor’s tail, but they do not harm themselves.

The one who emerges from the skirmish victoriously lures the female into the previously selected area. This is where the act takes place. An adult female of Bornean rock burbora lays about 50 eggs (eggs are mostly laid on moss). We keep the fish in the breeding aquarium for no longer than a few days. If spawning does not take place, we try with other individuals.

Hatching usually takes place on the 2nd day after the appearance of the eggs. After another 24 hours, we start feeding with micro-food in dust or gel. After 7-10 days, we can give small live food, eg Artemia, larvae, etc. Despite the fact that the parents eat the eggs and fry, they do not chase the offspring fiercely. It is best to wait a week or two with water changes, so that the young ones do not get shocked.

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