Into the CanopyAnimal care sheets

Home / Fishes / Carp, barbs, minnows, loaches / Nemacheilidae / Ataran Zipper loach

No federal permit to keep

Ataran Zipper loach

Acanthocobitis pictilis

Fishes › Carp, barbs, minnows, loaches (Cypriniformes) › Nemacheilidae (Stone loaches)

Paracanthocobitis pictilis, also known as the Ataran zipper loach, is a species of ray-finned fish in the genus Paracanthocobitis.

Aquarium hobby
Experience: Intermediate
FamilyStone loaches
Adult lengthup to 3.6 in
WaterFreshwater
HabitatLives in freshwater. Stays near the bottom

Care at a glance

Species-specific aquarium care

  • Water: Freshwater.
  • Layout: Lives on or near the bottom: floor space and hiding places matter more than height.
  • Availability: Rarely or never seen in the aquarium trade; expect to source it from specialists or not at all.

Calculated from this species' own FishBase record: tank size from its typical adult length and swimming zone, water values from its recorded ranges. The group guide below fills in general care.

Care guide

Species care notes

  • Tank: a base of at least 35 × 12 in (roughly 21 US gallons); space needed is rated “large tank”.
  • Water: a fairly wide range, from slightly acidic to slightly alkaline, 70–79 °F, pH 6.5–7.5, 1–8 dGH.
  • Behaviour: a shoaling fish best kept in a group of six or more; not a community fish.
  • Difficulty: Moderate (Seriously Fish rating).

Short excerpts from the species profile:

  • Setup: “Should not prove difficult to maintain under the correct conditions meaning we recommend designing the aquarium to resemble a flowing stream or river with a substrate of variably-sized rocks, sand, fine gravel and some large water-worn boulders.”
  • Diet: “Probably a micropredator feeding on insect larvae and suchlike in nature.”
  • Tankmates: “Apparently not as peaceful as other members of the genus and very bold so best kept with similarly-sized, active, schooling or shoaling cyprinids.”

From the Seriously Fish profile for this species, which has the full habitat, maintenance, diet, behaviour and breeding write-up 167

Group care guide

Stone loaches

Applies to most species in this group. Habitat: Eurasian stone loaches include oxygen-rich stream dwellers such as Schistura and small Vietnamese river species such as the hovering zebra loach. [fg157-sumo, fg157-hover]. Individual species can differ, so compare with the species numbers above and the linked sources.

Level 3 reflects water-quality and compatibility demands. Water range is for S. balteata; hovering zebra loaches accept 71.6–80.6°F and are called Micronemacheilus cruciatus in the source. [fg157-sumo, fg157-hover] Do not apply the tropical Schistura setup automatically to Hedinichthys, Barbatula, Lefua, Homatula or S. fasciolata: the cited protocols do not establish their temperature or flow needs.

Housing & setup

  • For Schistura balteata groups use a floor at least 90 × 30 cm (36 × 12 in).
  • Build a stream layout with sand, rounded rocks and driftwood forming numerous caves and broken sight lines.
  • Use strong filtration, aeration and some flow for Schistura; change 30–50% of water weekly.
  • For hovering zebra loaches use at least 60 × 30 cm (24 × 12 in), dense plants and well-oxygenated but non-turbulent water.
  • Introduce hovering zebra loaches only to a biologically mature aquarium; pH 6.0–7.5 and hardness 2–12 dGH suit both profiled species.

Sources 870871872

Climate & lighting

Water71.6–78.8°F

Sources 870871872

Diet

  • Small live or frozen Daphnia and Artemia.
  • Bloodworms for Schistura.
  • Moina, microworms and Artemia nauplii for hovering zebra loaches.
  • Appropriately sized dried foods alongside invertebrates, not as the sole Schistura diet.

Sources 870871872

Social life

  • Schistura defend individual caves and can harass placid bottom dwellers; groups require territories. Hovering zebra loaches are peaceful and need at least 8–10 companions.

Sources 870871872

Health watch

  • Territorial fin injuries in poorly structured Schistura tanks.
  • Freshwater ich, a general aquarium risk.
  • Stress-associated bacterial infections.

Sources 870871872

Understanding the animal

This species is part of a group that hobbyists, aviculturists or zoos keep widely (Stone loaches), so it's included for completeness. It may be rare in captivity itself, or not kept at all. Use the group guide as a starting point and look for species-specific advice from experienced keepers.
About this animal

About this animal

It is native to Myanmar and Thailand. It was described to science in 2012.

Quoted from the Wikipedia article “Paracanthocobitis pictilis” (CC BY-SA 4.0) 174

In the wild

In the wild

From this species’ own FishBase record (habitat, bottom type, water and breeding data), not its family. Good care copies these conditions.1

Where it livesLives in freshwater. Stays near the bottom.
Water it lives inFreshwater.
ClimateTropical climate.
  1. FishBase species summary: Acanthocobitis pictilis
From the sources

From the sources

Quoted from the matching sections of reputable sources for this exact species. Specialist databases are used first; Wikipedia (community-edited, CC BY-SA 4.0) only fills gaps. Other sources are short credited quotes.

OverviewParacanthocobitis pictilis, also known as the Ataran zipper loach, is a species of ray-finned fish in the genus Paracanthocobitis. It is native to Myanmar and Thailand. It was described to science in 2012. This freshwater fish has dark brown triangular saddle-shaped markings along its side, slanted at the front end of the body and almost vertical toward the tail. — Wikipedia (community-edited)
Where it livesHome ranges Population dynamics Growth parameters Max. ages / sizes Length-weight rel. Length-frequencies Mass conversion Recruitment Abundance Life cycle Reproduction Maturity Maturity/Gills rel. — FishBase

Data and studies

The numbers

The numbers

Each bar is what one source reports. Where several sources weigh in, the dashed gold band marks their average.

Water temperature

Reported70–79°F
Seriously Fish species profiles 16770–79

Range the species tolerates; aim for the middle.

pH

Reported6.5–7.5
Seriously Fish species profiles 1676.5–7.5

Water hardness

Reported1–8dGH
Seriously Fish species profiles 1671–8

Adult length

Reported3.6in
Seriously Fish species profiles 1673.6

Minimum tank footprint

Reported35in
Seriously Fish species profiles 16735

Seriously Fish recommends a tank base of at least 35 × 12 in (about 21 US gallons).

Sources for this sheet

  1. Seriously Fish species profiles Experienced keeper or breederLong-running aquarium reference written and peer-checked by experienced fishkeepers and ichthyologists; each profile covers habitat, tank size, water, diet, behaviour and breeding.
  2. Seriously Fish: Schistura balteata Experienced keeper or breederAdded in the 2026 source-checked care-guide review.
  3. Seriously Fish: Micronemacheilus cruciatus (formerly Yunnanilus cruciatus) Experienced keeper or breederAdded in the 2026 source-checked care-guide review.
  4. Merck Veterinary Manual: Disorders and Diseases of Fish Zoo, university or veterinaryAdded in the 2026 source-checked care-guide review.
  5. FishBase (Froese & Pauly, eds.), version 24.07 Peer-reviewed researchThe global scientific database on fishes, maintained by a consortium of research institutions; every value is referenced.
  6. Wikipedia (species article) Community referenceFree encyclopedia; useful overviews with their own citations. Intro text is quoted under CC BY-SA 4.0.