Nemacheilidae

Striped Loach

Nemacheilus binotatus

A member of the Nemacheilidae family (stone loaches), the striped loach, known scientifically as Nemacheilus binotatus, originates from Southeast Asia. These fish are found in the waters of Thailand, particularly in the basins of the Mae Klong and Chao Phraya rivers. Their natural habitat consists of shallow, up to 1 meter deep, flowing streams and rivers where the bottom is composed of stones and sand, often mixed with organic debris such as plant remains.

Tank
from 50 L (13 gal)
Temperature
23 – 26 °C (73 – 79 °F)
Size in aquarium
6 cm (2.4 in)
Acidity
pH 6–7.5
Natural rangeRange on the map
  • Thailand

Tank conditions

Plan the tank stocking
Temperature
23 – 26 °C (73 – 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
6 cm (2.4 in)
Lifespan
5 years
Temperament
Peaceful (regular)
Toward small fish
not a predator
Required aquarium volume
from 50 L (13 gal)
Lighting
any
Substrate
rocky rock formations, boulders, etc.
Water flow
moderate or strong
Feeding
Sinking (any)
Keeping
Both solitary and in group flexible
  • 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 (both solitary and in group (flexible)), footprint, decor and tank mates.

Care and keeping

Description

Adult specimens of this fish grow to about 6 cm in length. Their appearance is characterized by a concise pattern: three black lines run along the body from head to tail. Two of these are located on the sides, and the third extends along the back. The overall coloration is gray. Their fins are translucent. Sexual dimorphism in this species is not pronounced. However, females, when of the same age as males, may appear more massive or fuller.

Habitat

The species inhabits the Chao Phraya and Mae Klong river systems in Thailand. In nature, it populates shallow areas of rivers and streams less than one meter deep with moderate to strong currents. It prefers areas with a bottom of sand, gravel, pebbles, or stones, often with organic detritus such as fallen leaves.

Behavior and Compatibility

This fish prefers a solitary lifestyle, avoiding large gatherings of its kind. When choosing tank mates, it is best to opt for small species that inhabit similar biotopes in nature. Good companions can be some species of Gastromyzon, Siamese Algae Eater, as well as fish of the genus Garra, such as Garra rufa or Rainbow Garra. It is important to avoid territorial species, including closely related ones, such as the common Stone Loach or Schistura.

Care and Maintenance

For keeping a pair of striped loaches, an aquarium of at least 50 liters is recommended. Their care is straightforward, provided optimal water parameters are maintained. When setting up the aquarium, the main attention should be paid to its lower tier. Coarse sand should be used as a substrate, supplemented with stones and boulders. Aquatic plants are not mandatory; if you wish to add them, it is better to choose undemanding species that can attach to stones or driftwood – for example, all species of Anubias, aquatic mosses, and ferns. The presence of current in the aquarium will be beneficial. A powerful internal filter can provide both water circulation and the necessary mechanical filtration. Since these fish live in flowing waters, they are sensitive to water quality. Therefore, in addition to filtration, it is necessary to weekly replace 30–50% of the water volume with fresh water and regularly remove accumulated organic waste. It is also important to provide an aeration system if it is not part of the filtering equipment. This is an omnivorous species, whose diet in nature consists mainly of small insects, worms, crustaceans, and other zooplankton, supplemented by a small amount of plant material. In aquarium conditions, they readily accept most popular sinking foods in dry, frozen, and live forms.

Diet

In their natural habitat, the diet of these omnivorous fish consists of small insects, worms, crustaceans, and other zooplankton, as well as some plant matter. In aquarium conditions, they adapt well to a variety of sinking foods, whether dry pellets, frozen, or live options.

Breeding and Reproduction

There is no information on aquarium breeding. Males are distinguished by a suborbital flap and by the first five branched pectoral-fin rays, which are thickened and carry up to six rows of tubercles on the upper surface; adult females are usually slightly larger and heavier-bodied. In the wild the species is presumably a seasonal spawner.

Diseases

No specific diseases for this species have been described. Like other members of the family, the fish is sensitive to water quality and the accumulation of organic pollutants. Maintaining health requires a high concentration of dissolved oxygen and regular water changes, as the species tolerates environmental pollution poorly.

How to choose

When purchasing, choose active individuals that exhibit natural behavior and show no visible damage to their skin or fins. Healthy fish should show no signs of emaciation, and their breathing should be even. It is recommended to acquire a group of four or more individuals, as the species tends to exhibit social behavior and may experience stress if kept alone.

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 Striped Loach get?

An adult reaches 6 cm in length. Plan the tank around the maximum size: the fish quickly outgrows a cramped setup.

What size aquarium does Striped Loach need?

The recommended volume is 50 L. A smaller tank speeds up nitrate build-up and raises stress levels.

What water parameters does Striped Loach need?

Temperature 23–26 °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 Striped Loach live?

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

Is Striped Loach aggressive?

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

How many Striped Loach should be kept together?

Recommended setup: both solitary and in group (flexible). Ignoring this is a common cause of stress and disease.

What does Striped Loach 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 Striped Loach?

The scientific name of the species is Nemacheilus binotatus, family Nemacheilidae. It also appears in the literature as: Noemacheilus binotatus.

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Other scientific names and conservation status

Other scientific names
Noemacheilus binotatus
Categories
Loaches
Conservation status
Data deficientDD