Dwarf Chain Loach Tank Mates

Dwarf Chain Loach is peaceful, so its tank mates need choosing with care. Here are the 182 freshwater species that pair well with a dwarf chain loach — plus the 71 to avoid — with a live checker you can tune to your own tank.

By The Aquarium DB Team • Updated June 8, 2026 • Full Dwarf Chain Loach care guide →
Best matches

The best tank mates for a dwarf chain loach

  • Ember Tetra ✅ Compatible
    Easy care · Peaceful · 2 cm · 24–28 °C (75–82 °F)
    Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Neon Green Rasbora ✅ Compatible
    Easy care · Peaceful · 2 cm · 22–26 °C (72–79 °F)
    Both are peaceful, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
  • Ramshorn Snail ✅ Compatible
    Easy care · Peaceful · 2 cm · 20–28 °C (68–82 °F)
    Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Red Lip Nerite Snail ✅ Compatible
    Easy care · Peaceful · 2 cm · 22–28 °C (72–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Dawn Tetra ✅ Compatible
    Easy care · Peaceful · 2.5 cm · 22–28 °C (72–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Nerite Snail ✅ Compatible
    Easy care · Peaceful · 2.5 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Assassin Snail ✅ Compatible
    Easy care · Peaceful · 3 cm · 22–26 °C (72–79 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Endler's Livebearer ✅ Compatible
    Easy care · Peaceful · 3 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Glowlight Danio ✅ Compatible
    Easy care · Peaceful · 3 cm · 22–26 °C (72–79 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Gold Ring Danio ✅ Compatible
    Easy care · Peaceful · 3 cm · 18–26 °C (64–79 °F)
    Both are peaceful, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
  • Malaysian Trumpet Snail ✅ Compatible
    Easy care · Peaceful · 3 cm · 21–27 °C (70–81 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Neon Tetra ✅ Compatible
    Easy care · Peaceful · 3 cm · 20–26 °C (68–79 °F)
    Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
  • Tail-spot Corydoras ✅ Compatible
    Easy care · Peaceful · 3 cm · 22–28 °C (72–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Trinidad Guppy ✅ Compatible
    Easy care · Peaceful · 3 cm · 19–24 °C (66–75 °F)
    Both are peaceful, and their water overlaps around 24–24 °C — no size, zone or temperament conflicts.
  • Pygmy Corydoras ✅ Compatible
    Easy care · Peaceful · 3.2 cm · 22–26 °C (72–79 °F)
    Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
  • Glowlight Rasbora ✅ Compatible
    Easy care · Peaceful · 3.5 cm · 23–28 °C (73–82 °F)
    Both are peaceful, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Blue Danio ✅ Compatible
    Easy care · Peaceful · 4 cm · 21–26 °C (70–79 °F)
    Both are peaceful, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
  • Emperor Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 23–27 °C (73–81 °F)
    Compatible on the things that matter: shared water near 24–27 °C, workable temperaments, and no predator-and-prey size gap.
  • Flame Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Glowlight Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Golden Dwarf Barb ✅ Compatible
    Easy care · Peaceful · 4 cm · 18–24 °C (64–75 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Phoenix Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 23–28 °C (73–82 °F)
    Both are peaceful, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Red Phantom Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Rosy Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
With caution

Dwarf Chain Loach tank mates that can work with care

  • Afra Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 10 cm · 24–28 °C (75–82 °F)
    pH preferences only just meet (Dwarf Chain Loach 6.5–7.5 vs Afra Cichlid 7.8–8.6) — target the overlap and acclimate slowly.
  • Amano Shrimp ⚠️ With caution
    Easy care · Peaceful · 5 cm · 18–28 °C (64–82 °F)
    Adult Amano Shrimp might survive with Dwarf Chain Loach, but expect the young to be eaten — plant heavily.
  • Amazon Puffer ⚠️ With caution
    Medium care · Peaceful · 8 cm · 23–28 °C (73–82 °F)
    Your 80 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
  • Angelfish ⚠️ With caution
    Medium care · Semi-aggressive · 15 cm · 24–30 °C (75–86 °F)
    Dwarf Chain Loach is small enough to tempt Angelfish; only risk it in a densely planted setup with hiding spots.
  • Arrowhead Puffer ⚠️ With caution
    Hard care · Aggressive · 12 cm · 23–28 °C (73–82 °F)
    Arrowhead Puffer may hunt Dwarf Chain Loach, fry or shrimplets — safest in a heavily planted tank.
  • Auratus Cichlid ⚠️ With caution
    Medium care · Aggressive · 11 cm · 23–28 °C (73–82 °F)
    Different pH ranges (6.5–7.5 vs 7.6–8.8); doable if you sit in the shared band, but not ideal long-term.
  • Banded Gourami ⚠️ With caution
    Easy care · Semi-aggressive · 12 cm · 22–28 °C (72–82 °F)
    Dwarf Chain Loach is small enough to tempt Banded Gourami; only risk it in a densely planted setup with hiding spots.
  • Bandit Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 9 cm · 22–26 °C (72–79 °F)
    Your 80 L tank is below the ~150 L this pairing really wants — crowding raises aggression.

+ 79 more “with caution” pairings — see the interactive checker above.

Avoid

Fish to avoid keeping with a dwarf chain loach

  • Wels Catfish ⛔ Avoid
    Hard care · Aggressive · 300 cm · 15–25 °C (59–77 °F)
    Wels Catfish (300 cm) is big enough to swallow the 6 cm Dwarf Chain Loach whole.
  • Alligator Gar ⛔ Avoid
    Hard care · Aggressive · 250 cm · 24–28 °C (75–82 °F)
    Dwarf Chain Loach is bite-sized to a 250 cm predatory alligator gar — it will be eaten.
  • Redtail Catfish ⛔ Avoid
    Hard care · Aggressive · 120 cm · 24–27 °C (75–81 °F)
    Redtail Catfish (120 cm) is big enough to swallow the 6 cm Dwarf Chain Loach whole.
  • Fire Eel ⛔ Avoid
    Medium care · Semi-aggressive · 100 cm · 24–28 °C (75–82 °F)
    Size gap is too large (100 vs 6 cm): Fire Eel will treat Dwarf Chain Loach as food.
  • Clown Knifefish ⛔ Avoid
    Hard care · Aggressive · 90 cm · 24–28 °C (75–82 °F)
    Dwarf Chain Loach is bite-sized to a 90 cm predatory clown knifefish — it will be eaten.
  • Koi ⛔ Avoid
    Medium care · Peaceful · 90 cm · 4–28 °C (39–82 °F)
    Size gap is too large (90 vs 6 cm): Koi will treat Dwarf Chain Loach as food.
  • Spotted Gar ⛔ Avoid
    Hard care · Aggressive · 90 cm · 18–26 °C (64–79 °F)
    Dwarf Chain Loach is bite-sized to a 90 cm predatory spotted gar — it will be eaten.
  • Wolf Cichlid ⛔ Avoid
    Hard care · Aggressive · 72 cm · 24–30 °C (75–86 °F)
    Size gap is too large (72 vs 6 cm): Wolf Cichlid will treat Dwarf Chain Loach as food.

+ 63 more to avoid — the checker above flags every one.

Interactive tool

Check any fish against a dwarf chain loach

Dial in your exact tank size and filter by result — the checker scores every species in our database against a dwarf chain loach, with the reasoning for each verdict.

Tank-mate checker

Will it live with a Dwarf Chain Loach?

We compare each fish against your dwarf chain loach on temperament, size, water parameters and swimming zone. Set your tank size and filter the results.

  • Agassiz's Corydoras✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Agassiz's Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Black Skirt Tetra✅ Compatible
    Semi-aggressive · 6 cm · Easy care · 20–26 °C (68–79 °F)
    • Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Black Skirt Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Blackline Rasbora✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Blackline Rasbora in a shoal of 6+ or it gets stressed and nippy.
  • Blood Red Tiger Pleco✅ Compatible
    Peaceful · 6 cm · Medium care · 24–29 °C (75–84 °F)
    • Compatible on the things that matter: shared water near 24–29 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Butterfly Hillstream Loach✅ Compatible
    Peaceful · 6 cm · Hard care · 18–24 °C (64–75 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Desert Goby✅ Compatible
    Semi-aggressive · 6 cm · Easy care · 18–28 °C (64–82 °F)
    • Peaceful + Semi-aggressive, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Diamond Tetra✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Diamond Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Eastern Betta✅ Compatible
    Semi-aggressive · 6 cm · Medium care · 24–28 °C (75–82 °F)
    • Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Elegant Cory✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Elegant Cory in a shoal of 6+ or it gets stressed and nippy.
  • False Julii Corydoras✅ Compatible
    Peaceful · 6 cm · Easy care · 22–26 °C (72–79 °F)
    • Both are peaceful, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep False Julii Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • German Blue Ram✅ Compatible
    Peaceful · 6 cm · Hard care · 27–30 °C (81–86 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Glass Bloodfin Tetra✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Glass Bloodfin Tetra in a shoal of 6+ or it gets stressed and nippy.
  • GloFish Tetra✅ Compatible
    Semi-aggressive · 6 cm · Easy care · 21–28 °C (70–82 °F)
    • Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep GloFish Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Guppy✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Hillstream Loach✅ Compatible
    Peaceful · 6 cm · Hard care · 20–24 °C (68–75 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Neon Dwarf Rainbowfish✅ Compatible
    Peaceful · 6 cm · Easy care · 23–27 °C (73–81 °F)
    • Both are peaceful, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Neon Dwarf Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Odessa Barb✅ Compatible
    Semi-aggressive · 6 cm · Easy care · 20–26 °C (68–79 °F)
    • Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Odessa Barb in a shoal of 6+ or it gets stressed and nippy.
  • Peaceful Betta✅ Compatible
    Semi-aggressive · 6 cm · Medium care · 24–28 °C (75–82 °F)
    • Peaceful + Semi-aggressive, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Pearl Danio✅ Compatible
    Peaceful · 6 cm · Easy care · 20–25 °C (68–77 °F)
    • Compatible on the things that matter: shared water near 24–25 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Pearl Danio in a shoal of 6+ or it gets stressed and nippy.
  • Platy✅ Compatible
    Peaceful · 6 cm · Easy care · 21–28 °C (70–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Samurai Gourami✅ Compatible
    Peaceful · 6 cm · Hard care · 24–28 °C (75–82 °F)
    • Both are peaceful, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Slate Corydoras✅ Compatible
    Peaceful · 6 cm · Medium care · 23–28 °C (73–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Slate Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Smaragd Betta✅ Compatible
    Aggressive · 6 cm · Medium care · 23–28 °C (73–82 °F)
    • Peaceful + Aggressive, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Three-striped Dwarf Cichlid✅ Compatible
    Semi-aggressive · 6 cm · Medium care · 23–29 °C (73–84 °F)
    • Compatible on the things that matter: shared water near 24–29 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Amano Shrimp⚠️ With caution
    Peaceful · 5 cm · Easy care · 18–28 °C (64–82 °F)
    • Adult Amano Shrimp might survive with Dwarf Chain Loach, but expect the young to be eaten — plant heavily.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Amazon Puffer⚠️ With caution
    Peaceful · 8 cm · Medium care · 23–28 °C (73–82 °F)
    • Your 80 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Amazon Puffer in a shoal of 6+ or it gets stressed and nippy.
  • Bandit Cichlid⚠️ With caution
    Semi-aggressive · 9 cm · Medium care · 22–26 °C (72–79 °F)
    • Your 80 L tank is below the ~150 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Bandit Cichlid in a shoal of 6+ or it gets stressed and nippy.
  • Black Ruby Barb⚠️ With caution
    Semi-aggressive · 6 cm · Easy care · 22–26 °C (72–79 °F)
    • Your 80 L tank is below the ~100 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Black Ruby Barb in a shoal of 6+ or it gets stressed and nippy.
  • Brichardi Cichlid⚠️ With caution
    Semi-aggressive · 9 cm · Medium care · 24–28 °C (75–82 °F)
    • pH preferences only just meet (Dwarf Chain Loach 6.5–7.5 vs Brichardi Cichlid 7.8–9) — target the overlap and acclimate slowly.
    • Your 80 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Chocolate Gourami⚠️ With caution
    Peaceful · 5 cm · Hard care · 25–30 °C (77–86 °F)
    • pH preferences only just meet (Dwarf Chain Loach 6.5–7.5 vs Chocolate Gourami 4–6) — target the overlap and acclimate slowly.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Chocolate Gourami in a shoal of 6+ or it gets stressed and nippy.
  • Colombian Tetra⚠️ With caution
    Semi-aggressive · 6.5 cm · Easy care · 24–28 °C (75–82 °F)
    • Your 80 L tank is below the ~114 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Colombian Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Congo Tetra⚠️ With caution
    Peaceful · 8 cm · Medium care · 22–28 °C (72–82 °F)
    • Your 80 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Congo Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Demasoni Cichlid⚠️ With caution
    Aggressive · 9 cm · Hard care · 23–27 °C (73–81 °F)
    • pH preferences only just meet (Dwarf Chain Loach 6.5–7.5 vs Demasoni Cichlid 7.8–8.6) — target the overlap and acclimate slowly.
    • Your 80 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Demasoni Cichlid in a shoal of 12+ or it gets stressed and nippy.
  • Lifalili Jewel Cichlid⚠️ With caution
    Aggressive · 9 cm · Medium care · 22–28 °C (72–82 °F)
    • Your 80 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Mexican Tetra⚠️ With caution
    Semi-aggressive · 9 cm · Easy care · 18–25 °C (64–77 °F)
    • Your 80 L tank is below the ~110 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Mexican Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Pantanal Corydoras⚠️ With caution
    Peaceful · 8 cm · Medium care · 22–27 °C (72–81 °F)
    • Your 80 L tank is below the ~110 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Scissortail Rasbora⚠️ With caution
    Peaceful · 8 cm · Easy care · 22–27 °C (72–81 °F)
    • Your 80 L tank is below the ~90 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Scissortail Rasbora in a shoal of 6+ or it gets stressed and nippy.
  • Silver Tetra⚠️ With caution
    Peaceful · 9 cm · Easy care · 24–28 °C (75–82 °F)
    • Your 80 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Silver Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Tiger Barb⚠️ With caution
    Semi-aggressive · 7 cm · Easy care · 22–28 °C (72–82 °F)
    • Your 80 L tank is below the ~95 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
    • Keep Tiger Barb in a shoal of 6+ or it gets stressed and nippy.
  • Zebra Loach⚠️ With caution
    Peaceful · 9 cm · Medium care · 23–26 °C (73–79 °F)
    • Your 80 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Alligator Gar⛔ Not recommended
    Aggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
    • Dwarf Chain Loach is bite-sized to a 250 cm predatory alligator gar — it will be eaten.
    • Your 80 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Clown Knifefish⛔ Not recommended
    Aggressive · 90 cm · Hard care · 24–28 °C (75–82 °F)
    • Dwarf Chain Loach is bite-sized to a 90 cm predatory clown knifefish — it will be eaten.
    • Your 80 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Fire Eel⛔ Not recommended
    Semi-aggressive · 100 cm · Medium care · 24–28 °C (75–82 °F)
    • Size gap is too large (100 vs 6 cm): Fire Eel will treat Dwarf Chain Loach as food.
    • Your 80 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Koi⛔ Not recommended
    Peaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
    • Size gap is too large (90 vs 6 cm): Koi will treat Dwarf Chain Loach as food.
    • Your 80 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Redtail Catfish⛔ Not recommended
    Aggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
    • Redtail Catfish (120 cm) is big enough to swallow the 6 cm Dwarf Chain Loach whole.
    • Your 80 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Spotted Gar⛔ Not recommended
    Aggressive · 90 cm · Hard care · 18–26 °C (64–79 °F)
    • Dwarf Chain Loach is bite-sized to a 90 cm predatory spotted gar — it will be eaten.
    • Your 80 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Wels Catfish⛔ Not recommended
    Aggressive · 300 cm · Hard care · 15–25 °C (59–77 °F)
    • Wels Catfish (300 cm) is big enough to swallow the 6 cm Dwarf Chain Loach whole.
    • Your 80 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Wolf Cichlid⛔ Not recommended
    Aggressive · 72 cm · Hard care · 24–30 °C (75–86 °F)
    • Size gap is too large (72 vs 6 cm): Wolf Cichlid will treat Dwarf Chain Loach as food.
    • Your 80 L tank is below the ~760 L this pairing really wants — crowding raises aggression.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.

Compatibility is computed from each species' care data — a strong starting point, not a guarantee. Individual temperament varies, so always introduce new fish slowly and watch them.

Setting up a dwarf chain loach community tank

Give the group a stable, planted 80 L+ tank with a gentle filter, a reliable heater and plenty of cover — broken sight lines and hiding spots let mid-water and bottom dwellers keep out of each other's way. Cycle it fully and stock gradually.

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How to choose

How to choose the right tank mates for a dwarf chain loach

As a peaceful species, dwarf chain loach is easily bullied — favour other calm, non-nippy fish and steer clear of boisterous or aggressive tank mates. It mostly occupies the bottom of the tank, so it pairs naturally with species that use the other levels.

Dwarf Chain Loach grows to about 6 cm, so avoid tank mates small enough to be seen as food — as a rule of thumb, skip anything under roughly 3 cm. Match its water, too: aim for 24–29 °C (75–84 °F), pH 6.5–7.5 and 2–12 dGH. Fish needing very different conditions — coldwater species, or hard-water lovers against a soft-water fish — rarely thrive side by side.

Dwarf Chain Loach is a shoaling fish — stock a group of 6+ of its own kind first, then build compatible tank mates around them. Whatever you add, introduce new fish slowly, watch for bullying in the first days, and have a backup plan if temperaments clash.

FAQ

Frequently asked questions

Can a dwarf chain loach live with other fish?

Yes — with the right companions. Our checker finds 182 compatible freshwater species for dwarf chain loach. Pick calm, similarly-sized fish that share its water needs and add them to a mature, well-planted tank.

What is the best tank mate for a dwarf chain loach?

Easy, peaceful, similarly-sized species top the list — for example Ember Tetra, Neon Green Rasbora, Ramshorn Snail. Use the checker above to match against your own tank size.

What fish should you avoid keeping with a dwarf chain loach?

Avoid Wels Catfish, Alligator Gar, Redtail Catfish and similar — usually a temperature, size or temperament clash. The full "avoid" list below gives the reason for each.

How big a tank do dwarf chain loach tank mates need?

Start from Dwarf Chain Loach's own minimum and scale up with every addition. The checker above defaults to a 80 L community tank and flags pairings that need more room — drag the slider to match your setup.

← Back to the full Dwarf Chain Loach care guide