Black-lined loach
Introduction
The Black-lined loach (Ambastaia nigrolineata) is a captivating freshwater fish cherished by aquarists for its striking appearance and engaging behavior. Characterized by a prominent black stripe running along its body, this species adds visual interest to any aquarium. While not overly demanding, the Black-lined loach requires specific care to thrive, making it more suitable for aquarists with some experience.
What makes the Black-lined loach appealing to aquarists?
Its distinctive black stripe and active nature make it a standout addition to community tanks.
Is the Black-lined loach suitable for beginners?
Due to its need for pristine water conditions and sensitivity to environmental changes, it's better suited for aquarists with some experience.
Care and Environment
Proper care for the Black-lined loach involves attention to tank size, water parameters, and habitat setup. A minimum tank size of 90 liters is recommended, with larger tanks preferred for groups. Water should be maintained at a temperature of 20–25°C, pH between 6.5 and 7.5, and hardness of 90–268 ppm. Efficient filtration and moderate water flow are essential to replicate their natural environment. The substrate should consist of sand or fine gravel, complemented by smooth rocks, driftwood, and plants like Java fern or Anubias to provide hiding spots and reduce stress. Feeding should include a variety of live, frozen, and high-quality dry foods, with multiple small feedings per day to accommodate their active metabolism.
What is the ideal tank size for a group of Black-lined loaches?
A tank of at least 90 liters is recommended, with larger tanks preferred for groups to provide ample swimming space.
How often should I feed my Black-lined loach?
Multiple small feedings per day are ideal to match their active metabolism.
What type of substrate is best for Black-lined loaches?
Sand or fine gravel is recommended to protect their delicate barbels and mimic their natural habitat.
Origin and Habitat
Native to the Mekong River basin in China, Laos, and Thailand, the Black-lined loach inhabits fast-flowing streams and smaller rivers with sandy bottoms. These environments are characterized by clear, well-oxygenated waters with moderate to strong currents. The natural habitat includes submerged rocks, driftwood, and leaf litter, providing ample hiding spots and foraging opportunities.
Where is the Black-lined loach naturally found?
It is native to the Mekong River basin in China, Laos, and Thailand.
What type of environment does the Black-lined loach prefer?
Fast-flowing streams and smaller rivers with sandy bottoms and clear, well-oxygenated waters.
Temperament and Compatibility
The Black-lined loach is a peaceful, shoaling species that thrives in groups of at least five. They are active during the day and prefer the middle regions of the tank. Suitable tank mates include other peaceful, similarly sized fish that occupy different areas of the aquarium, such as rasboras, danios, and tetras. Avoid housing them with aggressive or significantly larger species to prevent stress and potential aggression.
Is the Black-lined loach a solitary fish?
No, it is a shoaling species that thrives in groups of at least five.
What are suitable tank mates for Black-lined loaches?
Peaceful, similarly sized fish like rasboras, danios, and tetras are ideal companions.
Can Black-lined loaches be kept with aggressive fish?
It's best to avoid housing them with aggressive or significantly larger species to prevent stress and potential aggression.
Interesting Facts
The Black-lined loach is known for its inquisitive nature, often exploring every nook and cranny of its environment. Unlike many loach species that are primarily nocturnal, the Black-lined loach is active during the day, making it more visible and engaging for aquarists. Additionally, this species has not been successfully bred in captivity, adding to its allure and the importance of conservation efforts in its native habitats.
Is the Black-lined loach active during the day or night?
Unlike many loach species, it is active during the day.
Has the Black-lined loach been bred in captivity?
No, there are no reported cases of successful breeding in aquariums.
Sources
All information in this article has been gathered from the following reputable sources:
Overview
Recommended Tank Size 37 Gallon (for groups of 5 or more) |
Minimum Group Size 5 |
Minimum Tank Volume 23.8 Gallon |
Maximum Adult Length 3.9 inch |
Average Adult Length 3.1 inch |
Shoaling (6+ required) Yes |
Preferred Water Type Freshwater, soft, slightly acidic to neutral |
Temperature Range (°C) 20–25 |
pH Range 6.5–7.5 |
Water Hardness (dGH) 5–15 |
Typical Lifespan (years) 5 years |