Nemacheilidae

Schistura balteata

The fish scientifically known as Schistura balteata, belonging to the family Nemacheilidae, is commonly referred to as the Schistura balteata. This species is relatively easy to keep and coexists well with many common aquarium inhabitants. However, its preference for moderate water flow might make maintenance slightly more challenging for beginner aquarists and limit the choice of compatible species.

Tank
from 80 L (21 gal)
Temperature
22 – 26 °C (72 – 79 °F)
Size in aquarium
7 – 8 cm (2.8 – 3.1 in)
Acidity
pH 6–7.5
Natural rangeRange on the map
  • Tanintharyi Region
  • Tenasserim River basin
  • Ratchaburi Province area
  • Kanchanaburi Province area
  • Malaysia
  • Myanmar

Tank conditions

Plan the tank stocking
Temperature
22 – 26 °C (72 – 79 °F)
Water pH
Slightly acidic (6) – Neutral (7.5)
Water dH
Very soft (2) – Hard (12)
Water salinity
no salt (freshwater)
Size in aquarium
7 – 8 cm (2.8 – 3.1 in)
Lifespan
5 years
Temperament
Peaceful (regular)
Toward small fish
not a predator
Required aquarium volume
from 80 L (21 gal)
Lighting
dimmed
Substrate
rocky rock formations, boulders, etc.
Water flow
moderate or strong
Swimming level
middle level
Feeding
Sinking (any)
Keeping
Small group 5–6 individuals
  • Lifespan. A lifespan to expect under good care, not a measured value: it depends heavily on tank volume, water quality and diet — and for selectively bred forms, on their origin as well.
  • Toward small fish. Based on the Predators category in the catalog or the temperament in the species parameters. “A risk to small fish” means the species is not a predator by habit, yet will swallow any fish that fits in its mouth.
  • Required aquarium volume. This is a husbandry recommendation, not a measured value: the volume depends on the keeping mode (small group (5–6 individuals)), footprint, decor and tank mates.

Care and keeping

Description

Adults of this fish can reach 7–8 cm in length. Their body is elongated and slender, with a relatively small head and high-set eyes. Near the mouth are barbels, which help them locate food. Their fins are translucent and quite short. A distinctive feature of the species is two black encircling bands running along the middle of the body. At the base of the dorsal fin, there are 3–5 dark spots. The posterior part of the body (and sometimes the entire body), as well as the space between the black bands, may have a pink or yellow hue. Often, a closely related species, very similar to Schistura balteata, known as Schistura cf. Balteata, can be found for sale. The prefix "cf." indicates that the scientific description of this species has not yet been completed by biologists. Although these two fish are often confused, their similar requirements for keeping conditions will not create problems for aquarists.

Habitat

Its homeland is Southeast Asia, specifically southern Myanmar, Tanintharyi Region. These fish inhabit the Tenasserim River basin, which also covers border areas of western Thailand, including Ratchaburi and Kanchanaburi provinces. They are found in the upper reaches of rivers originating in the mountains. Their typical biotope is characterized by fast currents, numerous rapids, and cascades. Along the banks, dense thickets of plants, mosses, and ferns can be seen. The water there is clean and well-oxygenated, and the substrates are predominantly rocky. Usually, such rivers and streams flow through dense tropical forests, where the closed canopy of trees almost completely blocks sunlight from the water surface.

Behavior and Compatibility

Unlike most loaches, Schistura balteata exhibits a rather peaceful nature. Although it zealously guards its territory on the aquarium bottom, it avoids direct clashes with its conspecifics. Nevertheless, it is recommended to avoid other bottom-dwelling species in the same aquarium. This species is compatible with fish adapted to turbulent conditions, such as danios, barbs, and other cyprinids. Accordingly, species that prefer calm waters should not be considered as their neighbors.

Care and Maintenance

For a small group of these fish, aquariums of 80 liters or more will be optimal. The setup should mimic a mountain riverbed, including a rocky substrate with several large boulders and the addition of driftwood. Shelters should be created using decor elements, one for each fish. Schistura balteata typically occupies such refuges and subsequently actively defends its "home" from conspecifics. It is critically important to provide moderate to strong internal current to simulate the fast-flowing waters of their natural habitats. Lighting should be subdued. Live aquatic plants are usually not used due to the specific conditions (substrate, current, lack of light), but there are undemanding species that can attach to the surfaces of driftwood and other decorative elements. As inhabitants of flowing waters, these fish are very sensitive to the accumulation of polluting organic waste and low oxygen concentrations. For successful long-term keeping, the uninterrupted operation of filtration and aeration systems is of paramount importance. Internal filters will be an excellent choice, as, in addition to their primary function of water purification, they will also provide the necessary internal current. Besides equipment, regular maintenance procedures contribute significantly to maintaining biological balance: weekly replacement of 30–50% of the water volume with fresh water and timely removal of organic waste (food remnants, excrement).

Diet

This species is omnivorous. In their natural environment, they feed on small invertebrates and some plant matter. In a home aquarium, they can be fed sinking dry foods, such as flakes and granules, enriched with protein. It is also recommended to regularly include live or frozen foods in their diet, such as bloodworms, brine shrimp, large daphnia, and similar products.

Breeding and Reproduction

At the time of writing this article, successful breeding cases of this species in artificial conditions in home aquariums have not been recorded.

Diseases

Health problems in these fish arise only in the presence of injuries or keeping in unsuitable conditions, which leads to a weakening of the immune system and the subsequent occurrence of various diseases. At the first signs of illness, it is necessary first to check the water parameters for exceeding permissible values or the presence of toxic substances (such as nitrites, nitrates, ammonia). If deviations are found, all indicators should be normalized, and then treatment should begin.

How to choose

When purchasing, choose active individuals that show interest in food and have no visible damage to fins or skin. A healthy fish should have a clean coloration without whitish film, ulcers, or unnatural spots. It is important to avoid specimens with sunken bellies, which may indicate emaciation or internal diseases, as well as fish that appear apathetic and constantly lie on the bottom without attempting to hide in a shelter. — inspect the fish for signs of emaciation or body deformities — check the integrity of the fins, ensuring no torn edges or white spots — ask the seller about the keeping conditions and the fish's adaptation to the offered diet Keep in mind that similar species, which may differ in color intensity and size, are often sold under this name. Since these fish have very fine scales, they are sensitive to transport and stress, so during inspection at the store, it is important to ensure there are no signs of bacterial infections, which often arise due to poor water quality in crowded tanks.

Compatibility

There are no pair reviews for this species yet — check tankmates in the matcher.

All tankmates

Plants and this fish

Matching water does not mean the plant will stay intact.

Frequently asked questions

The essentials: size, tank volume, water parameters and care

How big does Schistura balteata get?

An adult reaches 7–8 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Schistura balteata need?

The recommended volume is 80 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Schistura balteata need?

Temperature 22–26 °C, pH 6–7.5, hardness 2–12 dGH. Stability matters more than exact values: sudden swings are harder on the fish than a small deviation from the ideal.

How long does Schistura balteata live?

Around 5 years when kept properly. Lifespan depends directly on tank volume, water quality and a varied diet.

Is Schistura balteata aggressive?

Temperament: peaceful (regular). Keep this in mind when choosing tank mates.

How many Schistura balteata should be kept together?

Recommended setup: small group (5–6 individuals). Ignoring this is a common cause of stress and disease.

What does Schistura balteata eat?

Diet type: sinking (any). Feed small portions that are finished within a couple of minutes — overfeeding does more harm than underfeeding.

What is the scientific name of Schistura balteata?

The scientific name of the species is Schistura balteata, family Nemacheilidae. It also appears in the literature as: Nemacheilus balteatus.

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Other scientific names and conservation status

Other scientific names
Nemacheilus balteatus
Categories
Loaches
Conservation status
Data deficientDD