Glowlight Danio Tank Mates

Glowlight Danio is peaceful, so its tank mates need choosing with care. Here are the 138 freshwater species that pair well with a glowlight 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 Glowlight Danio care guide →
Best matches

The best tank mates for a glowlight 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)
    Both are peaceful, and their water overlaps around 22–26 °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 22–26 °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, 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)
    Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
  • 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)
    Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
  • Cherry Shrimp ✅ Compatible
    Easy care · Peaceful · 3 cm · 18–28 °C (64–82 °F)
    Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
  • Endler's Livebearer ✅ 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.
  • 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; 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)
    Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
  • Tail-spot Corydoras ✅ Compatible
    Easy care · Peaceful · 3 cm · 22–28 °C (72–82 °F)
    Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
  • 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)
    Compatible on the things that matter: shared water near 22–26 °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)
    Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
  • Blue Danio ✅ Compatible
    Easy care · Peaceful · 4 cm · 21–26 °C (70–79 °F)
    Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
  • 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, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
  • Ghost Shrimp ✅ Compatible
    Easy care · Peaceful · 4 cm · 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.
  • Glowlight 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.
  • 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 23–26 °C — no size, zone or temperament conflicts.
  • Red Phantom Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
With caution

Glowlight 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 Glowlight 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 clearly outsizes Glowlight Danio and is semi-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 Glowlight 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)
    Banded Dwarf Cichlid is semi-aggressive and may chase or nip the smaller Glowlight Danio — plant heavily and break up sight lines.
  • 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 Glowlight 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 Glowlight 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.

+ 101 more “with caution” pairings — see the interactive checker above.

Avoid

Fish to avoid keeping with a glowlight danio

  • Wels Catfish ⛔ Avoid
    Hard care · Aggressive · 300 cm · 15–25 °C (59–77 °F)
    Wels Catfish (300 cm) is big enough to swallow the 3 cm Glowlight Danio whole.
  • 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 Glowlight Danio as food.
  • Redtail Catfish ⛔ Avoid
    Hard care · Aggressive · 120 cm · 24–27 °C (75–81 °F)
    Glowlight 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)
    Fire Eel (100 cm) is big enough to swallow the 3 cm Glowlight 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 Glowlight Danio as food.
  • Koi ⛔ Avoid
    Medium care · Peaceful · 90 cm · 4–28 °C (39–82 °F)
    Glowlight 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)
    Glowlight 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)
    Size gap is too large (72 vs 3 cm): Wolf Cichlid will treat Glowlight Danio as food.

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

Interactive tool

Check any fish against a glowlight danio

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

Tank-mate checker

Will it live with a Glowlight Danio?

We compare each fish against your glowlight 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)
    • Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Glowlight 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)
    • Both are peaceful, and their water overlaps around 23–26 °C — no size, zone or temperament conflicts.
    • Keep Glowlight 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)
    • Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
    • Keep Glowlight 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 Glowlight 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)
    • Compatible on the things that matter: shared water near 24–26 °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 Glowlight 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)
    • Both are peaceful, and their water overlaps around 22–24 °C — no size, zone or temperament conflicts.
    • Keep Glowlight 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)
    • Compatible on the things that matter: shared water near 22–26 °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 Glowlight 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)
    • 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 Glowlight 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, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
    • Keep Glowlight 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 22–25 °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 Glowlight 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; 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 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)
    • 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 Glowlight 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.
  • Gold Ring Danio✅ Compatible
    Peaceful · 3 cm · Easy care · 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.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Glowlight Danio in a shoal of 8+ or it gets stressed and nippy.
    • Keep Gold Ring Danio 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, and their water overlaps around 24–26 °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 Glowlight 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 Glowlight 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 Glowlight 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)
    • 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 Glowlight 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)
    • 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 Glowlight 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, and their water overlaps around 22–24 °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 Glowlight 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)
    • Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Glowlight 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)
    • Compatible on the things that matter: shared water near 22–26 °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 Glowlight 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)
    • Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Glowlight 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)
    • Both are peaceful, and their water overlaps around 22–25 °C — no size, zone or temperament conflicts.
    • Keep Glowlight 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)
    • 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 Glowlight 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 is semi-aggressive and may chase or nip the smaller Glowlight Danio — plant heavily and break up sight lines.
    • Keep Glowlight 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 clearly outsizes Glowlight Danio and is semi-aggressive; risky unless the tank is big and well-planted.
    • Glowlight Danio is small enough to tempt Black Ruby Barb; only risk it in a densely planted setup with hiding spots.
    • Your 75 L tank is below the ~100 L this pairing really wants — crowding raises aggression.
    • Keep Glowlight 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)
    • Expect Black Skirt Tetra to harass Glowlight Danio at times; give dense cover and watch them at feeding.
    • Watch for Black Skirt Tetra picking off any glowlight danio small enough to fit in its mouth.
    • Keep Glowlight 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.
  • Chocolate Gourami⚠️ With caution
    Peaceful · 5 cm · Hard care · 25–30 °C (77–86 °F)
    • Different pH ranges (6.5–7.5 vs 4–6); doable if you sit in the shared band, but not ideal long-term.
    • Keep Glowlight Danio in a shoal of 8+ 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)
    • Desert Goby is semi-aggressive and may chase or nip the smaller Glowlight Danio — plant heavily and break up sight lines.
    • Desert Goby may hunt Glowlight Danio, fry or shrimplets — safest in a heavily planted tank.
    • Keep Glowlight 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 Glowlight 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 Glowlight Danio and is semi-aggressive; risky unless the tank is big and well-planted.
    • Watch for Eastern Betta picking off any glowlight danio small enough to fit in its mouth.
    • Keep Glowlight Danio in a shoal of 8+ 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 Glowlight Danio at times; give dense cover and watch them at feeding.
    • Watch for Humpbacked Tetra picking off any glowlight danio small enough to fit in its mouth.
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Glowlight 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 Glowlight 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)
    • Rainbow Emperor Tetra is semi-aggressive and may chase or nip the smaller Glowlight Danio — plant heavily and break up sight lines.
    • Keep Glowlight 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 and Glowlight Danio are close in size, but the semi-aggressive one tends to dominate — add glowlight danio in a group to spread the pressure.
    • Keep Glowlight 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)
    • Silvertip Tetra clearly outsizes Glowlight Danio and is semi-aggressive; risky unless the tank is big and well-planted.
    • Keep Glowlight 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)
    • Spotfin Betta is semi-aggressive and may chase or nip the smaller Glowlight Danio — plant heavily and break up sight lines.
    • Watch for Spotfin Betta picking off any glowlight danio small enough to fit in its mouth.
    • Keep Glowlight 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 Glowlight Danio — plant heavily and break up sight lines.
    • Striped Red-Eye Puffer may hunt Glowlight Danio, fry or shrimplets — safest in a heavily planted tank.
    • Keep Glowlight 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)
    • Expect Tiger Badis to harass Glowlight Danio at times; give dense cover and watch them at feeding.
    • Keep Glowlight 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)
    • Expect Wine Red Betta to harass Glowlight Danio at times; give dense cover and watch them at feeding.
    • Glowlight Danio is small enough to tempt Wine Red Betta; only risk it in a densely planted setup with hiding spots.
    • Keep Glowlight 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 Glowlight Danio as food.
    • Alligator Gar is aggressive and may chase or nip the smaller Glowlight 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 Glowlight 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 Glowlight Danio as food.
    • Clown Knifefish is aggressive and may chase or nip the smaller Glowlight 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 Glowlight 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 Glowlight Danio whole.
    • Fire Eel is semi-aggressive and may chase or nip the smaller Glowlight Danio — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
    • Keep Glowlight 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)
    • Glowlight 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 Glowlight 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)
    • Glowlight Danio is bite-sized to a 120 cm predatory redtail catfish — it will be eaten.
    • Redtail Catfish is aggressive and may chase or nip the smaller Glowlight Danio — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
    • Keep Glowlight 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)
    • Glowlight 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 Glowlight 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 Glowlight 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)
    • Wels Catfish (300 cm) is big enough to swallow the 3 cm Glowlight Danio whole.
    • Wels Catfish clearly outsizes Glowlight Danio and is aggressive; risky unless the tank is big and well-planted.
    • Your 75 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
    • Keep Glowlight 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)
    • Size gap is too large (72 vs 3 cm): Wolf Cichlid will treat Glowlight Danio as food.
    • Expect Wolf Cichlid to harass Glowlight Danio at times; give dense cover and watch them at feeding.
    • Your 75 L tank is below the ~760 L this pairing really wants — crowding raises aggression.
    • Keep Glowlight 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 glowlight 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 glowlight danio

As a peaceful species, glowlight 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.

Glowlight 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 22–26 °C (72–79 °F), pH 6.5–7.5 and 2–10 dGH. Fish needing very different conditions — coldwater species, or hard-water lovers against a soft-water fish — rarely thrive side by side.

Glowlight 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 glowlight danio live with other fish?

Yes — with the right companions. Our checker finds 138 compatible freshwater species for glowlight 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 glowlight 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 glowlight 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 glowlight danio tank mates need?

Start from Glowlight 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 Glowlight Danio care guide