Ataran Zipper Loach

Adults reach 8–9 cm. The body is elongated with short fins. Coloration is predominantly grey, marked by a characteristic pattern of dark streaks and irregular spots, while the belly remains light. Two pairs of barbels are located near the mouth. Sexual dimorphism is weak. Males differ from females in having a shallow groove beneath the eye, and during spawning season their fins may take on a reddish tinge.

This species is found in Southeast Asia, specifically in the southern regions of Myanmar, and inhabits the Ataran River basin. The Ataran Zipper Loach prefers shaded sections of rivers with fast-flowing water. The typical habitat features turbulent flow, a rocky bottom, driftwood, and accumulations of leaf litter often trapped in crevices and rock formations.

Male aggression is a notable behavioural trait, especially when they are kept alone or in small groups, often leading to conflict with their own kind. However, when the group numbers more than 6–7 individuals, aggression from dominant males typically diminishes, and in a spacious tank they can coexist peacefully. These fish are compatible with other species of similar size that prefer to occupy the water column or upper levels. Difficulty may arise with bottom-dwelling species such as other loaches and catfish, so it is best to avoid keeping them together.

For one or two fish, a minimum aquarium volume of 80 litres is recommended. The ideal setup mimics the natural habitat: a rocky stream or river bed with stones, boulders of various sizes, sand and gravel, with securely anchored driftwood. Décor elements can be arranged to form shelters such as crevices or caves. Live plants such as Anubias, hardy aquatic mosses and ferns that attach to wood may be used. Dimmed lighting is recommended. The Ataran Zipper Loach requires clean, flowing water rich in dissolved oxygen. Internal filters can create artificial current, while additional air pumps provide adequate oxygen levels. Beyond equipment, regular maintenance including weekly partial water changes and prompt removal of organic waste—uneaten food and faeces—helps maintain water quality.

This fish is omnivorous and accepts most common aquarium foods, whether live, frozen or dry. Offer a varied diet combining dry foods with live or frozen artemias, daphnia, bloodworms and similar items. The food must be sinking, as these fish typically do not take food from the surface.

At the time of writing, successful breeding of the Ataran Zipper Loach in home aquaria by hobbyists has not been documented.

Health problems in these fish arise only from injuries or unsuitable conditions that weaken immunity and lead to disease. At the first sign of illness, check water parameters for values outside safe ranges or the presence of toxic substances such as nitrites, nitrates and ammonia. Once deviations are found, normalize all parameters before beginning treatment.

When selecting fish, pay attention to their activity and skin condition. A healthy loach should show curiosity, actively explore the bottom, and have no visible damage, ulcers or white spots. Avoid fish with sunken bellies, which may indicate starvation or internal parasites, and those that appear lethargic or constantly lie on their side. Given the territorial nature of this species, it is preferable to purchase a group of six or more individuals, as solitary fish become timid or excessively aggressive. — Check for signs of infection such as cloudy eyes or frayed fin edges. — Ensure the fish react naturally to movement at the glass but do not appear panicked. — Prefer individuals that have already adapted to aquarium conditions and have begun accepting the offered food.