Brittans Rasbora - Kottelatia brittan Fish Profile & Care Guide
Introduction
The Brittans Rasbora ( Kottelatia brittani ) is a distinguished species within the freshwater aquarium hobby, celebrated for its unique attributes and origins. Native to the serene waters of Southeast Asia, this species belongs to the Cyprinidae family, known for its diverse and vibrant members. Characterized by its slender body, subtle colouration, and graceful swimming manner, Kottelatia brittani adds an element of elegance and tranquillity to any aquatic setting.
The Brittans Rasbora, inherently a schooling fish, ideally should be maintained in groups of 8 to 10 individuals to mitigate stress and enhance the aquarium's aesthetic through their synchronized movements. Housing them in such numbers not only calms the fish but also offers a glimpse into their natural behaviour, with males showcasing vibrant hues as they vie for female attention.
Brittans Rasboras are a superb choice for a carefully curated community aquarium, although they may not fare well with larger or more assertive species. In a biotope setting, they can coexist with other Rasboras, Barbs, and Loaches and are also compatible with shy Gouramis or smaller Betta species, making them versatile community members.
The design of the aquarium for Brittans Rasboras, while secondary to water quality, influences their colouration; they tend to exhibit richer colours in an environment that includes lush vegetation and a dark substrate. The addition of floating plants and driftwood to scatter light simulates their preferred habitat and enhances their sense of security. It is critical to introduce these Rasboras to a mature aquarium, stable in its water chemistry, to avoid stress. Moreover, a securely fitted lid is essential, given their propensity for jumping.
While Brittans Rasboras might appear understated at first, they flourish in conditions that replicate their native blackwater habitats, complete with subdued lighting, revealing their inherent beauty. These slender-bodied fish, with their soft pinkish tint and distinctive dark mark on the caudal peduncle, transform into a striking presence within the aquatic environment.
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Photos
Sexual Dimorphism
Discerning the sex of Brittans Rasbora can present a challenge. Typically, mature females are distinguished by a more pronounced, fuller abdomen and a marginally larger size compared to their male counterparts.
Quick Facts
| Scientific Name | Kottelatia brittan |
|---|---|
| Year Described | 1976 |
| Other Names | Rasbora Brittani, Taillight Rasbora, Head and Tail light Rasbora |
| Kingdom | Animalia |
| Classification | Actinopterygii |
| Order | Cypriniformes |
| Family | Cyprinidae |
| Genus | Kottelatia |
| Origins | Malaysia Brunei Indonesia |
| Approx Max Size | 5 cm |
| Temperament | Peaceful |
| Aquarium Level | Middle - Top |
| Difficulty | Beginner - Intermediate |
| Shoaling | Yes |
| Best kept as | Groups 8+ |
| Diet & Feeding | Omnivore |
| Reproduction | Egg Depositor |
| Average Lifespan | Up to 5 Years |
Water Parameters
| Water Type | Freshwater |
|---|---|
| pH | 5.0 - 7.0 |
| GH | 2 - 10 |
| TDS | 18 - 143 |
| ℉ | 73 - 79 |
|---|---|
| ℃ | 23 - 26 |
Natural Habitat
Brittan Rasboras are indigenous to Borneo, with their distribution confined to Brunei Darussalam and the northern regions of Sarawak, a Malaysian state. Within Sarawak, their habitat extends from the vicinity of the Rajang River Basin near Sibu to the Baram drainage area near Marudi, a border town. In Brunei Darussalam, collections have been made from tributaries of the Belait and Ingei rivers. These Rasboras are typically found in serene, forest-shrouded streams and tributaries characterized by relatively clear water, although comprehensive details on their specific environmental preferences remain to be fully documented.
Breeding
The Brittans Rasbora, like many in the Rasbora genus, exhibits egg-scattering behaviour without parental care. For effective breeding, aquarists should establish a dedicated breeding tank, mimicking the soft, acidic water parameters of their natural habitat, coupled with dense vegetation or spawning mops to serve as substrates for egg deposition.
The breeding tank should also ensure privacy and tranquillity, with dim lighting to replicate the subdued environments these fish prefer for spawning activities. Prior to breeding, conditioning the prospective breeding pair with high-quality live or frozen foods can significantly increase the chances of successful spawning.
Following spawning, it is imperative to remove the adult fish to prevent predation on the eggs, which are typically adhesive and discretely laid among the tank's flora. The incubation period is relatively short, with fry emerging within 24 to 48 hours, necessitating initial feeding on infusoria or specially formulated fry foods to support their growth.
Through careful attention to water quality, diet, and environmental conditions, aquarists can successfully breed Brittans Rasboras, contributing to the conservation and understanding of this delicate species.
Diet & Feeding
When maintained in captivity, Brittans Rasboras readily accept appropriately sized dried foods, including flakes, granules, and pellets, which ought to form the cornerstone of their diet. Nonetheless, it is imperative to enrich their diet with daily offerings of small live or frozen foods, such as artemia, tubifex worms, bloodworms, mosquito larvae, and daphnia. This varied dietary approach is essential for ensuring optimal health, growth, and colouration, and it plays a significant role in stimulating reproductive behaviours.
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Published: 06 Feb 2024
Last Updated: 06 Feb 2024