Gold Ring Danio Tank Mates

Gold Ring Danio is peaceful, so its tank mates need choosing with care. Here are the 139 freshwater species that pair well with a gold ring danio — plus the 93 to avoid — with a live checker you can tune to your own tank.

By The Aquarium DB Team • Updated June 8, 2026 • Full Gold Ring Danio care guide →
Best matches

The best tank mates for a gold ring danio

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

Gold Ring Danio tank mates that can work with care

  • African Butterfly Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 8 cm · 22–28 °C (72–82 °F)
    Expect African Butterfly Cichlid to harass Gold Ring Danio at times; give dense cover and watch them at feeding.
  • 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)
    Angelfish is semi-aggressive and may chase or nip the smaller Gold Ring Danio — plant heavily and break up sight lines.
  • 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 Gold Ring Danio — plant heavily and break up sight lines.
  • Banded Dwarf Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 7 cm · 24–30 °C (75–86 °F)
    Expect Banded Dwarf Cichlid to harass Gold Ring Danio at times; give dense cover and watch them at feeding.
  • Banded Gourami ⚠️ With caution
    Easy care · Semi-aggressive · 12 cm · 22–28 °C (72–82 °F)
    Banded Gourami is semi-aggressive and may chase or nip the smaller Gold Ring Danio — plant heavily and break up sight lines.
  • Bandit Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 9 cm · 22–26 °C (72–79 °F)
    Expect Bandit Cichlid to harass Gold Ring Danio at times; give dense cover and watch them at feeding.
  • Bearded Corydoras ⚠️ With caution
    Medium care · Peaceful · 10 cm · 18–24 °C (64–75 °F)
    Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.

+ 100 more “with caution” pairings — see the interactive checker above.

Avoid

Fish to avoid keeping with a gold ring danio

  • Wels Catfish ⛔ Avoid
    Hard care · Aggressive · 300 cm · 15–25 °C (59–77 °F)
    Size gap is too large (300 vs 3 cm): Wels Catfish will treat Gold Ring Danio as food.
  • Alligator Gar ⛔ Avoid
    Hard care · Aggressive · 250 cm · 24–28 °C (75–82 °F)
    Size gap is too large (250 vs 3 cm): Alligator Gar will treat Gold Ring Danio as food.
  • Redtail Catfish ⛔ Avoid
    Hard care · Aggressive · 120 cm · 24–27 °C (75–81 °F)
    Redtail Catfish (120 cm) is big enough to swallow the 3 cm Gold Ring Danio whole.
  • Fire Eel ⛔ Avoid
    Medium care · Semi-aggressive · 100 cm · 24–28 °C (75–82 °F)
    Fire Eel (100 cm) is big enough to swallow the 3 cm Gold Ring Danio whole.
  • Clown Knifefish ⛔ Avoid
    Hard care · Aggressive · 90 cm · 24–28 °C (75–82 °F)
    Size gap is too large (90 vs 3 cm): Clown Knifefish will treat Gold Ring Danio as food.
  • Koi ⛔ Avoid
    Medium care · Peaceful · 90 cm · 4–28 °C (39–82 °F)
    Koi (90 cm) is big enough to swallow the 3 cm Gold Ring Danio whole.
  • Spotted Gar ⛔ Avoid
    Hard care · Aggressive · 90 cm · 18–26 °C (64–79 °F)
    Gold Ring Danio 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)
    Gold Ring Danio is bite-sized to a 72 cm predatory wolf cichlid — it will be eaten.

+ 85 more to avoid — the checker above flags every one.

Interactive tool

Check any fish against a gold ring danio

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

Tank-mate checker

Will it live with a Gold Ring Danio?

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

  • Assassin Snail✅ Compatible
    Peaceful · 3 cm · Easy care · 22–26 °C (72–79 °F)
    • Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Blackwing Hatchetfish✅ Compatible
    Peaceful · 3.5 cm · Medium care · 23–28 °C (73–82 °F)
    • Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Blackwing Hatchetfish in a shoal of 6+ or it gets stressed and nippy.
  • Cherry Shrimp✅ Compatible
    Peaceful · 3 cm · Easy care · 18–28 °C (64–82 °F)
    • Compatible on the things that matter: shared water near 18–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Cherry Shrimp in a shoal of 10+ or it gets stressed and nippy.
  • Clown Killifish✅ Compatible
    Peaceful · 3.5 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 Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Clown Killifish in a shoal of 6+ or it gets stressed and nippy.
  • Crimson Red Betta✅ Compatible
    Peaceful · 3.5 cm · Hard care · 24–29 °C (75–84 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Crystal Red Shrimp✅ Compatible
    Peaceful · 2.5 cm · Hard care · 20–24 °C (68–75 °F)
    • Compatible on the things that matter: shared water near 20–24 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Crystal Red Shrimp in a shoal of 10+ or it gets stressed and nippy.
  • Dawn Tetra✅ Compatible
    Peaceful · 2.5 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.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Dawn Tetra in a shoal of 8+ or it gets stressed and nippy.
  • Dwarf Spotted Rasbora✅ Compatible
    Peaceful · 2.5 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 middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Dwarf Spotted Rasbora in a shoal of 8+ or it gets stressed and nippy.
  • Endler's Livebearer✅ Compatible
    Peaceful · 3 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 Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Eyespot Rasbora✅ Compatible
    Peaceful · 3.5 cm · Medium care · 20–25 °C (68–77 °F)
    • Both are peaceful, and their water overlaps around 20–25 °C — no size, zone or temperament conflicts.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Eyespot Rasbora in a shoal of 8+ or it gets stressed and nippy.
  • Fire Red Licorice Gourami✅ Compatible
    Peaceful · 3.5 cm · Hard care · 23–28 °C (73–82 °F)
    • Both are peaceful, and their water overlaps around 23–26 °C — no size, zone or temperament conflicts.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Glowlight Danio✅ Compatible
    Peaceful · 3 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.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Glowlight Danio in a shoal of 8+ or it gets stressed and nippy.
  • Glowlight Rasbora✅ Compatible
    Peaceful · 3.5 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.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Glowlight Rasbora in a shoal of 8+ or it gets stressed and nippy.
  • Green Neon Tetra✅ Compatible
    Peaceful · 2.5 cm · Hard care · 24–28 °C (75–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Green Neon Tetra in a shoal of 8+ or it gets stressed and nippy.
  • Lambchop Rasbora✅ Compatible
    Peaceful · 3 cm · Medium care · 23–28 °C (73–82 °F)
    • Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Lambchop Rasbora in a shoal of 6+ or it gets stressed and nippy.
  • Malaysian Trumpet Snail✅ Compatible
    Peaceful · 3 cm · Easy care · 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.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Neon Blue Rasbora✅ Compatible
    Peaceful · 2.5 cm · Medium care · 23–26 °C (73–79 °F)
    • Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Neon Blue Rasbora in a shoal of 10+ or it gets stressed and nippy.
  • Neon Tetra✅ Compatible
    Peaceful · 3 cm · Easy care · 20–26 °C (68–79 °F)
    • Compatible on the things that matter: shared water near 20–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Neon Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Northern Glowlight Danio✅ Compatible
    Peaceful · 3.5 cm · Medium 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 middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Northern Glowlight Danio in a shoal of 8+ or it gets stressed and nippy.
  • Pygmy Corydoras✅ Compatible
    Peaceful · 3.2 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 Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Pygmy Corydoras in a shoal of 8+ or it gets stressed and nippy.
  • Tail-spot Corydoras✅ Compatible
    Peaceful · 3 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Tail-spot Corydoras in a shoal of 8+ or it gets stressed and nippy.
  • Tailspotted Oto✅ Compatible
    Peaceful · 3.5 cm · Medium care · 22–27 °C (72–81 °F)
    • Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Tailspotted Oto in a shoal of 6+ or it gets stressed and nippy.
  • Tiger Shrimp✅ Compatible
    Peaceful · 3 cm · Hard care · 20–25 °C (68–77 °F)
    • Compatible on the things that matter: shared water near 20–25 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Tiger Shrimp in a shoal of 6+ or it gets stressed and nippy.
  • Trinidad Guppy✅ Compatible
    Peaceful · 3 cm · Easy care · 19–24 °C (66–75 °F)
    • Compatible on the things that matter: shared water near 19–24 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Black Darter Tetra⚠️ With caution
    Semi-aggressive · 4 cm · Hard care · 21–28 °C (70–82 °F)
    • Black Darter Tetra and Gold Ring Danio are close in size, but the semi-aggressive one tends to dominate — add gold ring danio in a group to spread the pressure.
    • Keep Gold Ring Danio in a shoal of 8+ 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 Gold Ring Danio — plant heavily and break up sight lines.
    • Watch for Black Ruby Barb picking off any gold ring danio small enough to fit in its mouth.
    • Your 75 L tank is below the ~100 L this pairing really wants — crowding raises aggression.
    • Keep Gold Ring Danio in a shoal of 8+ 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 clearly outsizes Gold Ring Danio and is semi-aggressive; risky unless the tank is big and well-planted.
    • Gold Ring Danio is small enough to tempt Black Skirt Tetra; only risk it in a densely planted setup with hiding spots.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Black Skirt Tetra 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 Gold Ring Danio at times; give dense cover and watch them at feeding.
    • Gold Ring Danio is small enough to tempt Desert Goby; only risk it in a densely planted setup with hiding spots.
    • Keep Gold Ring Danio in a shoal of 8+ 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 Gold Ring Danio in a shoal of 8+ 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 clearly outsizes Gold Ring Danio and is semi-aggressive; risky unless the tank is big and well-planted.
    • Watch for Eastern Betta picking off any gold ring danio small enough to fit in its mouth.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • GloFish Tetra⚠️ With caution
    Semi-aggressive · 6 cm · Easy care · 21–28 °C (70–82 °F)
    • GloFish Tetra clearly outsizes Gold Ring Danio and is semi-aggressive; risky unless the tank is big and well-planted.
    • Gold Ring Danio is small enough to tempt GloFish Tetra; only risk it in a densely planted setup with hiding spots.
    • Keep Gold Ring Danio in a shoal of 8+ 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)
    • Humpbacked Tetra is semi-aggressive and may chase or nip the smaller Gold Ring Danio — plant heavily and break up sight lines.
    • Gold Ring Danio is small enough to tempt Humpbacked Tetra; only risk it in a densely planted setup with hiding spots.
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Gold Ring Danio in a shoal of 8+ 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 Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Morse Code Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Rainbow Emperor Tetra⚠️ With caution
    Semi-aggressive · 3.6 cm · Medium care · 22–28 °C (72–82 °F)
    • Expect Rainbow Emperor Tetra to harass Gold Ring Danio at times; give dense cover and watch them at feeding.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Rainbow Emperor Tetra in a shoal of 8+ or it gets stressed and nippy.
  • Serpae Tetra⚠️ With caution
    Semi-aggressive · 4 cm · Easy care · 23–28 °C (73–82 °F)
    • Serpae Tetra is semi-aggressive and may chase or nip the smaller Gold Ring Danio — plant heavily and break up sight lines.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Serpae Tetra 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)
    • Expect Silvertip Tetra to harass Gold Ring Danio at times; give dense cover and watch them at feeding.
    • Keep Gold Ring Danio in a shoal of 8+ 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)
    • Expect Spotfin Betta to harass Gold Ring Danio at times; give dense cover and watch them at feeding.
    • Gold Ring Danio is small enough to tempt Spotfin Betta; only risk it in a densely planted setup with hiding spots.
    • Keep Gold Ring Danio in a shoal of 8+ 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 Gold Ring Danio — plant heavily and break up sight lines.
    • Gold Ring Danio is small enough to tempt Striped Red-Eye Puffer; only risk it in a densely planted setup with hiding spots.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Tiger Badis⚠️ With caution
    Semi-aggressive · 4 cm · Medium care · 22–24 °C (72–75 °F)
    • Tiger Badis is semi-aggressive and may chase or nip the smaller Gold Ring Danio — plant heavily and break up sight lines.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Wine Red Betta⚠️ With caution
    Aggressive · 5 cm · Medium care · 24–28 °C (75–82 °F)
    • Wine Red Betta clearly outsizes Gold Ring Danio and is aggressive; risky unless the tank is big and well-planted.
    • Watch for Wine Red Betta picking off any gold ring danio small enough to fit in its mouth.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Alligator Gar⛔ Not recommended
    Aggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
    • Size gap is too large (250 vs 3 cm): Alligator Gar will treat Gold Ring Danio as food.
    • Alligator Gar is aggressive and may chase or nip the smaller Gold Ring 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 Gold Ring Danio in a shoal of 8+ 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 3 cm): Clown Knifefish will treat Gold Ring Danio as food.
    • Expect Clown Knifefish to harass Gold Ring Danio at times; give dense cover and watch them at feeding.
    • Your 75 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Fire Eel⛔ Not recommended
    Semi-aggressive · 100 cm · Medium care · 24–28 °C (75–82 °F)
    • Fire Eel (100 cm) is big enough to swallow the 3 cm Gold Ring Danio whole.
    • Fire Eel clearly outsizes Gold Ring Danio and is semi-aggressive; risky unless the tank is big and well-planted.
    • Your 75 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Koi⛔ Not recommended
    Peaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
    • Koi (90 cm) is big enough to swallow the 3 cm Gold Ring Danio whole.
    • Your 75 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
    • Keep Gold Ring Danio in a shoal of 8+ 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 3 cm Gold Ring Danio whole.
    • Redtail Catfish clearly outsizes Gold Ring Danio and is aggressive; risky unless the tank is big and well-planted.
    • Your 75 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Spotted Gar⛔ Not recommended
    Aggressive · 90 cm · Hard care · 18–26 °C (64–79 °F)
    • Gold Ring Danio is bite-sized to a 90 cm predatory spotted gar — it will be eaten.
    • Spotted Gar is aggressive and may chase or nip the smaller Gold Ring Danio — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Wels Catfish⛔ Not recommended
    Aggressive · 300 cm · Hard care · 15–25 °C (59–77 °F)
    • Size gap is too large (300 vs 3 cm): Wels Catfish will treat Gold Ring Danio as food.
    • Expect Wels Catfish to harass Gold Ring Danio at times; give dense cover and watch them at feeding.
    • Your 75 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
    • Keep Gold Ring Danio in a shoal of 8+ or it gets stressed and nippy.
  • Wolf Cichlid⛔ Not recommended
    Aggressive · 72 cm · Hard care · 24–30 °C (75–86 °F)
    • Gold Ring Danio is bite-sized to a 72 cm predatory wolf cichlid — it will be eaten.
    • Wolf Cichlid clearly outsizes Gold Ring 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 Gold Ring Danio in a shoal of 8+ 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 gold ring 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

How to choose the right tank mates for a gold ring danio

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

Gold Ring Danio grows to about 3 cm, so avoid tank mates small enough to be seen as food — as a rule of thumb, skip anything under roughly 2 cm. Match its water, too: aim for 18–26 °C (64–79 °F), pH 6–7.5 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.

Gold Ring Danio is a shoaling fish — stock a group of 8+ 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 gold ring danio live with other fish?

Yes — with the right companions. Our checker finds 139 compatible freshwater species for gold ring 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 gold ring 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 gold ring 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 gold ring danio tank mates need?

Start from Gold Ring 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.

← Back to the full Gold Ring Danio care guide