Zebra Danio Tank Mates

Zebra Danio is peaceful, so its tank mates need choosing with care. Here are the 134 freshwater species that pair well with a zebra danio — plus the 79 to avoid — with a live checker you can tune to your own tank.

The best tank mates for a zebra danio

  • Ember Tetra ✅ Compatible
    Easy care · Peaceful · 2 cm · 24–28 °C (75–82 °F)
    Compatible on the things that matter: shared water near 24–25 °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 22–25 °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 20–25 °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)
    Compatible on the things that matter: shared water near 22–25 °C, workable temperaments, and no predator-and-prey size gap.
  • Dawn Tetra ✅ Compatible
    Easy care · Peaceful · 2.5 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 22–25 °C — no size, zone or temperament conflicts.
  • Nerite Snail ✅ 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.
  • 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)
    Compatible on the things that matter: shared water near 22–25 °C, workable temperaments, and no predator-and-prey size gap.
  • Glowlight Danio ✅ Compatible
    Easy care · Peaceful · 3 cm · 22–26 °C (72–79 °F)
    Both are peaceful, and their water overlaps around 22–25 °C — no size, zone or temperament conflicts.
  • Gold Ring Danio ✅ Compatible
    Easy care · Peaceful · 3 cm · 18–26 °C (64–79 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Malaysian Trumpet Snail ✅ Compatible
    Easy care · Peaceful · 3 cm · 21–27 °C (70–81 °F)
    Both are peaceful, and their water overlaps around 21–25 °C — no size, zone or temperament conflicts.
  • Neon Tetra ✅ Compatible
    Easy care · Peaceful · 3 cm · 20–26 °C (68–79 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • 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; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Pygmy Corydoras ✅ Compatible
    Easy care · Peaceful · 3.2 cm · 22–26 °C (72–79 °F)
    Both are peaceful, and their water overlaps around 22–25 °C — no size, zone or temperament conflicts.
  • Glowlight Rasbora ✅ Compatible
    Easy care · Peaceful · 3.5 cm · 23–28 °C (73–82 °F)
    Compatible on the things that matter: shared water near 23–25 °C, workable temperaments, and no predator-and-prey size gap.
  • Blue Danio ✅ Compatible
    Easy care · Peaceful · 4 cm · 21–26 °C (70–79 °F)
    Compatible on the things that matter: shared water near 21–25 °C, workable temperaments, and no predator-and-prey size gap.
  • Emperor Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 23–27 °C (73–81 °F)
    Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Flame Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Compatible on the things that matter: shared water near 22–25 °C, workable temperaments, and no predator-and-prey size gap.
  • Glowlight Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 22–25 °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 23–25 °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, and their water overlaps around 22–25 °C — no size, zone or temperament conflicts.
  • Rosy Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 22–25 °C — no size, zone or temperament conflicts.

Zebra Danio 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 (Zebra Danio 6.5–7.5 vs Afra Cichlid 7.8–8.6) — target the overlap and acclimate slowly.
  • African Butterfly Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 8 cm · 22–28 °C (72–82 °F)
    Expect African Butterfly Cichlid to harass Zebra Danio at times; give dense cover and watch them at feeding.
  • Agassiz's Dwarf Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 9 cm · 24–30 °C (75–86 °F)
    Expect Agassiz's Dwarf Cichlid to harass Zebra Danio at times; give dense cover and watch them at feeding.
  • Amano Shrimp ⚠️ With caution
    Easy care · Peaceful · 5 cm · 18–28 °C (64–82 °F)
    Adult Amano Shrimp might survive with Zebra Danio, 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 75 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)
    Expect Angelfish to harass Zebra Danio at times; give dense cover and watch them at feeding.
  • Arrowhead Puffer ⚠️ With caution
    Hard care · Aggressive · 12 cm · 23–28 °C (73–82 °F)
    Arrowhead Puffer clearly outsizes Zebra Danio and is aggressive; risky unless the tank is big and well-planted.
  • Ash Lipped Apisto ⚠️ With caution
    Hard care · Semi-aggressive · 7 cm · 24–29 °C (75–84 °F)
    Ash Lipped Apisto is semi-aggressive and may chase or nip the smaller Zebra Danio — plant heavily and break up sight lines.

+ 119 more “with caution” pairings — see the interactive checker above.

Fish to avoid keeping with a zebra danio

  • Wels Catfish ⛔ Avoid
    Hard care · Aggressive · 300 cm · 15–25 °C (59–77 °F)
    Zebra Danio is bite-sized to a 300 cm predatory wels catfish — it will be eaten.
  • Alligator Gar ⛔ Avoid
    Hard care · Aggressive · 250 cm · 24–28 °C (75–82 °F)
    Alligator Gar (250 cm) is big enough to swallow the 5 cm Zebra Danio whole.
  • Redtail Catfish ⛔ Avoid
    Hard care · Aggressive · 120 cm · 24–27 °C (75–81 °F)
    Zebra Danio is bite-sized to a 120 cm predatory redtail catfish — it will be eaten.
  • Fire Eel ⛔ Avoid
    Medium care · Semi-aggressive · 100 cm · 24–28 °C (75–82 °F)
    Size gap is too large (100 vs 5 cm): Fire Eel will treat Zebra Danio as food.
  • Clown Knifefish ⛔ Avoid
    Hard care · Aggressive · 90 cm · 24–28 °C (75–82 °F)
    Size gap is too large (90 vs 5 cm): Clown Knifefish will treat Zebra Danio as food.
  • Koi ⛔ Avoid
    Medium care · Peaceful · 90 cm · 4–28 °C (39–82 °F)
    Zebra Danio is bite-sized to a 90 cm koi — it will be eaten.
  • Spotted Gar ⛔ Avoid
    Hard care · Aggressive · 90 cm · 18–26 °C (64–79 °F)
    Size gap is too large (90 vs 5 cm): Spotted Gar will treat Zebra Danio as food.
  • Wolf Cichlid ⛔ Avoid
    Hard care · Aggressive · 72 cm · 24–30 °C (75–86 °F)
    Wolf Cichlid (72 cm) is big enough to swallow the 5 cm Zebra Danio whole.

+ 71 more to avoid — the checker above flags every one.

Check any fish against a zebra danio

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

Will it live with a Zebra Danio?

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

  • Adolf's Cory✅ Compatible
    Peaceful · 5.5 cm · Medium care · 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.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Adolf's Cory in a shoal of 6+ or it gets stressed and nippy.
  • Axelrod's Cory✅ Compatible
    Peaceful · 5 cm · Easy 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.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Axelrod's Cory in a shoal of 6+ or it gets stressed and nippy.
  • Bandit Corydoras✅ Compatible
    Peaceful · 5 cm · Easy care · 22–27 °C (72–81 °F)
    • Compatible on the things that matter: shared water near 22–25 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Bandit Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Bloodfin Tetra✅ Compatible
    Peaceful · 5.5 cm · Easy care · 18–28 °C (64–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Bloodfin Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Blue Turbo Snail✅ Compatible
    Peaceful · 5 cm · Medium care · 25–30 °C (77–86 °F)
    • Both are peaceful, and their water overlaps around 25–25 °C — no size, zone or temperament conflicts.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
  • Checkered Barb✅ Compatible
    Peaceful · 5 cm · Easy care · 20–25 °C (68–77 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Checkered Barb in a shoal of 6+ or it gets stressed and nippy.
  • Cherry Barb✅ Compatible
    Peaceful · 5 cm · Easy care · 23–27 °C (73–81 °F)
    • Both are peaceful, and their water overlaps around 23–25 °C — no size, zone or temperament conflicts.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Cherry Barb in a shoal of 6+ or it gets stressed and nippy.
  • Cochu's Blue Tetra✅ Compatible
    Peaceful · 5 cm · Medium 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 Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Cochu's Blue Tetra in a shoal of 8+ or it gets stressed and nippy.
  • Firehead Tetra✅ Compatible
    Peaceful · 5 cm · Medium care · 24–28 °C (75–82 °F)
    • Both are peaceful, and their water overlaps around 24–25 °C — no size, zone or temperament conflicts.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Firehead Tetra in a shoal of 8+ or it gets stressed and nippy.
  • Five-banded Barb✅ Compatible
    Peaceful · 5 cm · Easy care · 23–27 °C (73–81 °F)
    • Compatible on the things that matter: shared water near 23–25 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Five-banded Barb in a shoal of 6+ or it gets stressed and nippy.
  • Forktail Blue-eye✅ Compatible
    Peaceful · 5 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful, and their water overlaps around 22–25 °C — no size, zone or temperament conflicts.
    • Both favour the top of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Forktail Blue-eye in a shoal of 6+ or it gets stressed and nippy.
  • Peaceful · 5 cm · Medium care · 23–28 °C (73–82 °F)
    • Both are peaceful, and their water overlaps around 23–25 °C — no size, zone or temperament conflicts.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Half-striped Penguin Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Harlequin Rasbora✅ Compatible
    Peaceful · 5 cm · Easy care · 23–28 °C (73–82 °F)
    • Compatible on the things that matter: shared water near 23–25 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Harlequin Rasbora in a shoal of 6+ or it gets stressed and nippy.
  • Honey Gourami✅ Compatible
    Peaceful · 5 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful, and their water overlaps around 22–25 °C — no size, zone or temperament conflicts.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
  • Horseman Cory✅ Compatible
    Peaceful · 5 cm · Medium care · 22–26 °C (72–79 °F)
    • Both are peaceful, and their water overlaps around 22–25 °C — no size, zone or temperament conflicts.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Horseman Cory in a shoal of 6+ or it gets stressed and nippy.
  • Peaceful · 5 cm · Easy care · 10–28 °C (50–82 °F)
    • Both are peaceful, and their water overlaps around 18–25 °C — no size, zone or temperament conflicts.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
  • Julii Corydoras✅ Compatible
    Peaceful · 5 cm · Easy care · 23–26 °C (73–79 °F)
    • Both are peaceful, and their water overlaps around 23–25 °C — no size, zone or temperament conflicts.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Julii Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Masked Corydoras✅ Compatible
    Peaceful · 5 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 Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Masked Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Mystery Snail✅ Compatible
    Peaceful · 5 cm · Easy care · 20–28 °C (68–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
  • Panda Corydoras✅ Compatible
    Peaceful · 5 cm · Medium care · 20–26 °C (68–79 °F)
    • Compatible on the things that matter: shared water near 20–25 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Panda Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Rummy-nose Tetra✅ Compatible
    Peaceful · 5 cm · Medium care · 23–29 °C (73–84 °F)
    • Both are peaceful, and their water overlaps around 23–25 °C — no size, zone or temperament conflicts.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Rummy-nose Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Skunk Corydoras✅ Compatible
    Peaceful · 5 cm · Easy care · 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.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Skunk Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Stoliczka's Barb✅ Compatible
    Peaceful · 5 cm · Easy care · 20–26 °C (68–79 °F)
    • Both are peaceful, and their water overlaps around 20–25 °C — no size, zone or temperament conflicts.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Stoliczka's Barb in a shoal of 6+ or it gets stressed and nippy.
  • Peaceful · 5 cm · Medium care · 24–28 °C (75–82 °F)
    • Compatible on the things that matter: shared water near 24–25 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Xingu Black Neon Tetra in a shoal of 8+ 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 Zebra Danio, but expect the young to be eaten — plant heavily.
    • Keep Zebra Danio 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)
    • Black Ruby Barb is semi-aggressive and may chase or nip the smaller Zebra Danio — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~100 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio 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.
  • Black Skirt Tetra⚠️ With caution
    Semi-aggressive · 6 cm · Easy care · 20–26 °C (68–79 °F)
    • Black Skirt Tetra is semi-aggressive and may chase or nip the smaller Zebra Danio — plant heavily and break up sight lines.
    • Keep Zebra Danio 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.
  • Chocolate Gourami⚠️ With caution
    Peaceful · 5 cm · Hard care · 25–30 °C (77–86 °F)
    • pH preferences only just meet (Zebra Danio 6.5–7.5 vs Chocolate Gourami 4–6) — target the overlap and acclimate slowly.
    • Keep Zebra Danio 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.
  • Desert Goby⚠️ With caution
    Semi-aggressive · 6 cm · Easy care · 18–28 °C (64–82 °F)
    • Expect Desert Goby to harass Zebra Danio at times; give dense cover and watch them at feeding.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
  • Dwarf Chain Loach⚠️ With caution
    Peaceful · 6 cm · Medium care · 24–29 °C (75–84 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Dwarf Chain Loach in a shoal of 6+ or it gets stressed and nippy.
  • Eastern Betta⚠️ With caution
    Semi-aggressive · 6 cm · Medium care · 24–28 °C (75–82 °F)
    • Eastern Betta and Zebra Danio are close in size, but the semi-aggressive one tends to dominate — add zebra danio in a group to spread the pressure.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
  • GloFish Tetra⚠️ With caution
    Semi-aggressive · 6 cm · Easy care · 21–28 °C (70–82 °F)
    • Expect GloFish Tetra to harass Zebra Danio at times; give dense cover and watch them at feeding.
    • Keep Zebra Danio 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.
  • Humpbacked Tetra⚠️ With caution
    Semi-aggressive · 5 cm · Hard care · 24–28 °C (75–82 °F)
    • Expect Humpbacked Tetra to harass Zebra Danio at times; give dense cover and watch them at feeding.
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Humpbacked Tetra in a shoal of 8+ or it gets stressed and nippy.
  • Morse Code Corydoras⚠️ With caution
    Peaceful · 5 cm · Medium care · 23–26 °C (73–79 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Morse Code Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Odessa Barb⚠️ With caution
    Semi-aggressive · 6 cm · Easy care · 20–26 °C (68–79 °F)
    • Expect Odessa Barb to harass Zebra Danio at times; give dense cover and watch them at feeding.
    • Keep Zebra Danio 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⚠️ With caution
    Semi-aggressive · 6 cm · Medium care · 24–28 °C (75–82 °F)
    • Expect Peaceful Betta to harass Zebra Danio at times; give dense cover and watch them at feeding.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
  • Silvertip Tetra⚠️ With caution
    Semi-aggressive · 5 cm · Easy care · 22–28 °C (72–82 °F)
    • Silvertip Tetra and Zebra Danio are close in size, but the semi-aggressive one tends to dominate — add zebra danio in a group to spread the pressure.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
    • Keep Silvertip Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Spotfin Betta⚠️ With caution
    Semi-aggressive · 5 cm · Medium care · 23–28 °C (73–82 °F)
    • Spotfin Betta is semi-aggressive and may chase or nip the smaller Zebra Danio — plant heavily and break up sight lines.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
  • Striped Red-Eye Puffer⚠️ With caution
    Aggressive · 5 cm · Hard care · 24–28 °C (75–82 °F)
    • Striped Red-Eye Puffer is aggressive and may chase or nip the smaller Zebra Danio — plant heavily and break up sight lines.
    • Keep Zebra Danio in a shoal of 6+ or it gets stressed and nippy.
  • Wine Red Betta⚠️ With caution
    Aggressive · 5 cm · Medium care · 24–28 °C (75–82 °F)
    • One likes softer water and the other harder (5–15 vs 0–4 dGH) — a compromise, not a perfect match.
    • Wine Red Betta and Zebra Danio are close in size, but the aggressive one tends to dominate — add zebra danio in a group to spread the pressure.
    • Keep Zebra Danio 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)
    • Alligator Gar (250 cm) is big enough to swallow the 5 cm Zebra Danio whole.
    • Alligator Gar is aggressive and may chase or nip the smaller Zebra Danio — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio 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)
    • Size gap is too large (90 vs 5 cm): Clown Knifefish will treat Zebra Danio as food.
    • Clown Knifefish is aggressive and may chase or nip the smaller Zebra Danio — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio 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 5 cm): Fire Eel will treat Zebra Danio as food.
    • Expect Fire Eel to harass Zebra Danio at times; give dense cover and watch them at feeding.
    • Your 75 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio 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)
    • Zebra Danio is bite-sized to a 90 cm koi — it will be eaten.
    • Your 75 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio 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)
    • Zebra Danio is bite-sized to a 120 cm predatory redtail catfish — it will be eaten.
    • Expect Redtail Catfish to harass Zebra Danio at times; give dense cover and watch them at feeding.
    • Your 75 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio 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)
    • Size gap is too large (90 vs 5 cm): Spotted Gar will treat Zebra Danio as food.
    • Expect Spotted Gar to harass Zebra Danio at times; give dense cover and watch them at feeding.
    • Your 75 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio 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)
    • Zebra Danio is bite-sized to a 300 cm predatory wels catfish — it will be eaten.
    • Wels Catfish is aggressive and may chase or nip the smaller Zebra Danio — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio 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)
    • Wolf Cichlid (72 cm) is big enough to swallow the 5 cm Zebra Danio whole.
    • Wolf Cichlid clearly outsizes Zebra Danio and is aggressive; risky unless the tank is big and well-planted.
    • Your 75 L tank is below the ~760 L this pairing really wants — crowding raises aggression.
    • Keep Zebra Danio 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 zebra danio community tank

Give the group a stable, planted 75 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 the right tank mates for a zebra danio

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

Zebra Danio grows to about 5 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 18–25 °C (64–77 °F), pH 6.5–7.5 and 5–15 dGH. Fish needing very different conditions — coldwater species, or hard-water lovers against a soft-water fish — rarely thrive side by side.

Zebra Danio 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.

Frequently asked questions

Can a zebra danio live with other fish?

Yes — with the right companions. Our checker finds 134 compatible freshwater species for zebra danio. 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 zebra danio?

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 zebra danio?

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 zebra danio tank mates need?

Start from Zebra Danio's own minimum and scale up with every addition. The checker above defaults to a 75 L community tank and flags pairings that need more room — drag the slider to match your setup.