Barito Loach - Kapuasia falaris Fish Profile & Care Guide
Introduction
The Barito Loach (Kapuasia falaris) is a recently described species of nemacheilid loach endemic to the Barito River basin in southern Borneo. Formally identified in December 2024 by ichthyologists Maurice Kottelat, Tan Heok Hui, and Veryl Hasan, this species is distinguished by its unique colouration and morphological features. The species name 'falaris' is derived from the Greek words 'phalaros' and 'ris', meaning 'with a white dot on the nose', reflecting this characteristic marking. The discovery of K. falaris highlights the rich biodiversity of Borneo's freshwater ecosystems and underscores the importance of their conservation.
While detailed studies on the shoaling behaviour of Barito Loaches are currently lacking, observations suggest that these loaches are inherently peaceful, with only occasional minor scuffles. They often remain hidden, especially when ample hiding spots are available, and become more active during feeding times. Providing a group of these Loaches in an aquarium setting may promote natural behaviours and reduce stress, as many loach species are known to thrive in the company of conspecifics.
The Barito Loach exhibits a generally calm temperament, coexisting well with its kind and other fish species, making it an excellent addition to a community aquarium. Compatible tankmates include other non-aggressive species that occupy different niches within the tank, such as mid-water schooling fish or surface dwellers. It's essential to avoid housing them with overly aggressive or territorial species, such as some cichlids or larger barbs, to prevent stress and potential conflicts. Ensuring all inhabitants have adequate room and resources will contribute to a harmonious aquarium environment.
Barito Loaches should be kept in aquariums with medium-hard water and a neutral to slightly alkaline pH to replicate their natural habitat. A well-covered tank is essential, as these loaches are adept climbers and jumpers. Providing a strong current and high oxygen saturation is beneficial, although not strictly necessary. However, what is strictly required is a well-structured environment with numerous hiding places, such as caves, driftwood, and dense vegetation, to help them feel secure.
The Barito Loach is a visually striking species characterized by a distinctive white marking on its snout. It is accompanied by a dark stripe behind the eye and another extending across the nape and the rear edge of the gill cover. Its body pattern consists of three to seven deep chocolate-brown patches set against a pale pink or ivory background, with each individual exhibiting a unique arrangement. The caudal fin varies in appearance, ranging from transparent to shades of yellow or deep red, sometimes featuring spots towards the rear. The dorsal fin remains clear, while a prominent black blotch is visible at the base of the unbranched rays and the first set of branched rays. Both male and female specimens can display a range of caudal fin colouration.
Availability
The Barito Loach isn't avilable any of our marketplace shops, want to be the first to offer it?.
Photos
Sexual Dimorphism
Sexual dimorphism in the Barito Loach is primarily distinguished by a skin flap beneath the eye, exclusive to males. In contrast, females exhibit a simple skin fold in the exact location. Additionally, males possess thicker pectoral fin rays, a common characteristic among loach species. Furthermore, small skin ridges can be observed between the pectoral fin rays of males, further aiding in differentiation between the sexes.
Quick Facts
| Scientific Name | Kapuasia falaris |
|---|---|
| Year Described | 2024 |
| Other Names | White Nosed Loach |
| Kingdom | Animalia |
| Classification | Actinopterygii |
| Order | Cypriniformes |
| Family | Nemacheilidae |
| Genus | Kapuasia |
| Origins | Indonesia |
| Approx Max Size | 8 cm |
| Temperament | Peaceful |
| Aquarium Level | Bottom |
| Difficulty | Beginner - Intermediate |
| Shoaling | NA |
| Best kept as | Groups 5+ |
| Diet & Feeding | Omnivore |
| Reproduction | Egg Depositor |
| Average Lifespan | Up to 8 Years |
Water Parameters
| Water Type | Freshwater |
|---|---|
| pH | 6.5 - 7.5 |
| GH | 4 - 12 |
| KH | 4 - 6 |
| ℉ | 72 - 79 |
|---|---|
| ℃ | 22 - 26 |
Natural Habitat
The Barito Loach is endemic to the Barito River basin in southern Borneo, Indonesia. This species was collected in Desa Pipitak Jaya, Kecamatan Piani, Kabupaten Tapin, South Kalimantan. While precise details about its natural habitat are currently lacking, the Barito River Basin is characterized by a network of rivers and streams that typically feature substrates ranging from gravel to sandy bottoms, with varying flow rates. Tropical rainforest ecosystems often influence this region's aquatic environments, suggesting that these fish may inhabit clear, well-oxygenated waters with moderate to swift currents. Further research is necessary to accurately define this species' specific ecological preferences and habitat requirements.?
Breeding
The Barito Loach is a relatively recent addition to the aquarium hobby, and specific information regarding its breeding habits in captivity is currently limited. As with many loach species, breeding in home aquariums can be challenging due to specific environmental and physiological requirements.
Diet & Feeding
The Barito Loach is an omnivorous species that naturally forages along riverbeds, consuming a mix of plant matter and small aquatic organisms. Maintaining a diverse diet in captivity is essential for their health and well-being. To meet their protein requirements, they readily accept high-quality sinking pellets or wafers designed for bottom-dwelling species, along with live and frozen foods such as bloodworms, brine shrimp, and daphnia.
Additionally, blanched vegetables like zucchini or cucumber can be offered to supplement their diet with essential fibre. These Loaches are primarily bottom-dwelling scavengers, displaying crepuscular feeding behaviour, meaning they are most active during dawn and dusk. To accommodate their natural habits, food should be provided during periods of low light, and a soft, sandy substrate is recommended to facilitate foraging without the risk of injury.
Other Loaches
Published: 06 Mar 2025
Last Updated: 06 Mar 2025