Kuhli Loach Tank Mates

Kuhli loaches are peaceful, eel-like bottom-dwellers — quirky, social, and compatible with almost any calm fish.

They spend their time sifting the substrate and hiding, never bothering tankmates, which makes them an exceptionally safe community addition (even with a betta). Keep them in a group of five or more on soft sand with plenty of cover, or you will rarely see them.

Kuhli Loach key facts

The sourced figures the engine uses to judge Kuhli Loach pairings.

Key facts — Kuhli Loach (Pangio kuhlii)
Adult size9 cm
Minimum tank20 US gal
Minimum group5+ (shoal)
TemperamentPeaceful
Temperature range24–30°C
pH range5.5–7
BioloadLow
Swim levelBottom
Beginner-friendlyYes
Sources & confidence (11 species)

These back the Kuhli Loach figures and the recommended tank mates above. Each figure is read from the TankStocking species database (v2026.06); below is the care reference behind it and how confident we are in that data. Confidence reflects the source quality, not whether any pairing is safe. Full source list and the welfare model are on the methodology page.

  • Kuhli Loach Pangio kuhlii — Seriously Fish / FishBase (Pangio kuhlii) high confidence
  • Amano Shrimp Caridina multidentata — Aquarium Co-Op amano shrimp care; Aquadiction high confidence
  • Bamboo Shrimp (Wood/Fan Shrimp) Atyopsis moluccensis — Aquariadise (aquariadise.com/caresheet-bamboo-shrimp-atyopsis-moluccensis) high confidence
  • Bleeding Heart Tetra Hyphessobrycon erythrostigma — Seriously Fish (Hyphessobrycon erythrostigma) high confidence
  • Boesemani Rainbowfish Melanotaenia boesemani — Seriously Fish; Aquarium Co-Op Boesemani guide high confidence
  • Bolivian Ram Mikrogeophagus altispinosus — Seriously Fish (seriouslyfish.com/species/mikrogeophagus-altispinosus) high confidence
  • Brilliant Rasbora Rasbora einthovenii — Seriously Fish (seriouslyfish.com/species/rasbora-einthovenii) high confidence
  • Bristlenose Pleco Ancistrus sp. — Aquarium Source / aqua-fish.net Ancistrus care guides high confidence
  • Bronze Corydoras Corydoras aeneus — Seriously Fish (seriouslyfish.com/species/corydoras-aeneus) high confidence
  • Celebes Rainbowfish Marosatherina ladigesi — Seriously Fish (seriouslyfish.com/species/marosatherina-ladigesi) high confidence
  • Checker Barb Oliotius oligolepis — Seriously Fish — Oliotius oligolepis (https://www.seriouslyfish.com/species/oliotius-oligolepis/) high confidence
Tank & group guidance: Keep at least five in a 20-gallon tank or larger, on soft sand with caves and dense planting. Secure the lid and intakes — kuhlis are escape artists. The planner below is pre-set to 20 gallons — add your real list to test it.

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      Verdict

      Top Kuhli Loach tank mates

      A ranked shortlist: the species the engine clears with Kuhli Loach and that suit its size and temperament best — tap any to load the exact pairing in the planner.

      Top Kuhli Loach tank mates — engine-cleared, ranked by size & temperament fit
      SpeciesAdult sizeTemp rangeMin groupSwim levelWhy it works
      Amano Shrimp 5 cm 18–27°C 3+ (pair/group) All levels Peaceful temperament, similar adult size
      Bamboo Shrimp (Wood/Fan Shrimp) 10 cm 20–27°C 1 All levels Peaceful temperament, similar adult size
      Bleeding Heart Tetra 6 cm 21–28°C 8+ (shoal) Midwater Uses the midwater zone, peaceful temperament, similar adult size
      Boesemani Rainbowfish 10 cm 24–28°C 6+ (shoal) Midwater Uses the midwater zone, peaceful temperament, similar adult size
      Bolivian Ram 8 cm 24–27°C 2+ (pair/group) Bottom Peaceful temperament, similar adult size
      Brilliant Rasbora 9 cm 22–26°C 6+ (shoal) Midwater Uses the midwater zone, peaceful temperament, similar adult size
      Bristlenose Pleco 13 cm 23–27°C 1 Bottom Peaceful temperament, similar adult size
      Bronze Corydoras 7 cm 22–26°C 6+ (shoal) Bottom Peaceful temperament, similar adult size
      Celebes Rainbowfish 8 cm 22–28°C 6+ (shoal) Midwater Uses the midwater zone, peaceful temperament, similar adult size
      Checker Barb 5 cm 20–25°C 6+ (shoal) Midwater Uses the midwater zone, peaceful temperament, similar adult size

      Other engine-cleared options (not necessarily ideal)

      These clear TankStocking's hard welfare checks with Kuhli Loach, but are larger, bolder, or otherwise less ideal than the shortlist above — read up before committing.

      Possible with care

      These can work, but the engine flags something to watch — read the reason before you commit.

      • Betta (Siamese Fighting Fish) — Territorial
      • Paradise Fish — Aggression
      • Cockatoo Dwarf Cichlid (Apisto Cacatuoides) — Territorial
      • Convict Cichlid — Aggression
      • Firemouth Cichlid — Territorial
      • Jewel Cichlid — Aggression
      • Kribensis (Rainbow Krib) — Territorial
      • Golden Wonder Killifish (Striped Panchax) — Aggression
      • Rainbow Shark — Aggression
      • Redtail Black Shark — Aggression
      • Pictus Catfish — Aggression

      Best avoided

      A hard welfare check fires for each of these — don't mix them with Kuhli Loach.

      • Chocolate Gourami — Species-only fish
      • Licorice Gourami — Species-only fish
      • Snakeskin Gourami — Predation risk
      • Bala Shark — Predation risk
      • Rosy Barb — Temperature clash
      • Tinfoil Barb — Predation risk
      • Green Severum — Predation risk
      • Multifasciatus Shell-Dweller — Territorial, Species-only fish
      • Oscar — Predation risk, Aggression
      • Common Goldfish — Temperature clash, Coldwater + tropical
      • Fancy Goldfish — Temperature clash, Coldwater + tropical
      • Gold White Cloud Mountain Minnow — Temperature clash, Coldwater + tropical
      • Rosy Red Minnow (Fathead Minnow) — Temperature clash, Coldwater + tropical
      • White Cloud Mountain Minnow — Temperature clash, Coldwater + tropical

      Kuhli Loach community ideas

      Each build is scored by the same engine as the planner — tap one to load it.

      Kuhli + tetra community

      ✓ Good starter plan

      6× Kuhli Loach, 10× Neon Tetra

      A hidden bottom crew under a peaceful tetra school — different worlds, zero conflict.

      Load this build in the planner ↑

      Kuhli + betta

      ! Worth a closer look

      6× Kuhli Loach, 1× Betta (Siamese Fighting Fish)

      Bottom-dwelling kuhlis stay clear of a betta's territory — a calm, planted pairing.

      Load this build in the planner ↑

      Common questions

      What fish can live with kuhli loaches?

      Nearly any peaceful community fish: tetras, rasboras, gouramis, corydoras, and even bettas, since kuhlis keep to the bottom and never provoke tankmates. Avoid large or aggressive fish that might eat them.

      Do kuhli loaches need to be in groups?

      Yes — keep at least five. They are social, and in larger groups they are far bolder and more often seen out exploring.

      Why do my kuhli loaches hide?

      It is natural; they are nocturnal burrowers. Soft sand, dense planting, caves, and a larger group all coax them into the open more often.

      More on Kuhli Loach

      Related guides on TankStocking — each scored by the same welfare engine as the planner.

      Compatibility is a planning estimate: individual temperament, tank layout, and group sizes all matter. Cycle the tank, add fish gradually, and watch how they behave. See the methodology or browse the full freshwater fish list.