Exclamation Point Rasbora Tank Mates

Exclamation Point Rasbora is peaceful, so its tank mates need choosing with care. Here are the 132 freshwater species that pair well with an exclamation point rasbora — plus the 105 to avoid — with a live checker you can tune to your own tank.

By The Aquarium DB Team • Updated June 8, 2026 • Full Exclamation Point Rasbora care guide →
Best matches

The best tank mates for an exclamation point rasbora

  • Ember Tetra ✅ Compatible
    Easy care · Peaceful · 2 cm · 24–28 °C (75–82 °F)
    Both are peaceful, and their water overlaps around 24–28 °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)
    Compatible on the things that matter: shared water near 22–28 °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, and their water overlaps around 22–28 °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 22–28 °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 22–28 °C — no size, zone or temperament conflicts.
  • Glowlight Danio ✅ Compatible
    Easy care · Peaceful · 3 cm · 22–26 °C (72–79 °F)
    Both are peaceful, 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)
    Compatible on the things that matter: shared water near 22–27 °C, workable temperaments, and no predator-and-prey size gap.
  • 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)
    Compatible on the things that matter: shared water near 22–28 °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, and their water overlaps around 22–24 °C — no size, zone or temperament conflicts.
  • 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, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
  • Blue Danio ✅ Compatible
    Easy care · Peaceful · 4 cm · 21–26 °C (70–79 °F)
    Compatible on the things that matter: shared water near 22–26 °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)
    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 22–28 °C — no size, zone or temperament conflicts.
  • Glowlight Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Compatible on the things that matter: shared water near 22–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Golden Dwarf Barb ✅ Compatible
    Easy care · Peaceful · 4 cm · 18–24 °C (64–75 °F)
    Compatible on the things that matter: shared water near 22–24 °C, workable temperaments, and no predator-and-prey size gap.
  • Phoenix Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 23–28 °C (73–82 °F)
    Compatible on the things that matter: shared water near 23–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Red Phantom Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 22–28 °C — no size, zone or temperament conflicts.
With caution

Exclamation Point Rasbora 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 Exclamation Point Rasbora 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 Exclamation Point Rasbora and is semi-aggressive; risky unless the tank is big and well-planted.
  • Banded Gourami ⚠️ With caution
    Easy care · Semi-aggressive · 12 cm · 22–28 °C (72–82 °F)
    Expect Banded Gourami to harass Exclamation Point Rasbora at times; give dense cover and watch them at feeding.
  • Bandit Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 9 cm · 22–26 °C (72–79 °F)
    Bandit Cichlid is semi-aggressive and may chase or nip the smaller Exclamation Point Rasbora — plant heavily and break up sight lines.
  • 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.
  • Black Darter Tetra ⚠️ With caution
    Hard care · Semi-aggressive · 4 cm · 21–28 °C (70–82 °F)
    Expect Black Darter Tetra to harass Exclamation Point Rasbora at times; give dense cover and watch them at feeding.
  • Black Ruby Barb ⚠️ With caution
    Easy care · Semi-aggressive · 6 cm · 22–26 °C (72–79 °F)
    Black Ruby Barb is semi-aggressive and may chase or nip the smaller Exclamation Point Rasbora — plant heavily and break up sight lines.

+ 95 more “with caution” pairings — see the interactive checker above.

Avoid

Fish to avoid keeping with an exclamation point rasbora

  • Wels Catfish ⛔ Avoid
    Hard care · Aggressive · 300 cm · 15–25 °C (59–77 °F)
    Size gap is too large (300 vs 2 cm): Wels Catfish will treat Exclamation Point Rasbora as food.
  • Alligator Gar ⛔ Avoid
    Hard care · Aggressive · 250 cm · 24–28 °C (75–82 °F)
    Alligator Gar (250 cm) is big enough to swallow the 2 cm Exclamation Point Rasbora whole.
  • Redtail Catfish ⛔ Avoid
    Hard care · Aggressive · 120 cm · 24–27 °C (75–81 °F)
    Size gap is too large (120 vs 2 cm): Redtail Catfish will treat Exclamation Point Rasbora as food.
  • Fire Eel ⛔ Avoid
    Medium care · Semi-aggressive · 100 cm · 24–28 °C (75–82 °F)
    Size gap is too large (100 vs 2 cm): Fire Eel will treat Exclamation Point Rasbora as food.
  • Clown Knifefish ⛔ Avoid
    Hard care · Aggressive · 90 cm · 24–28 °C (75–82 °F)
    Exclamation Point Rasbora 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 2 cm): Koi will treat Exclamation Point Rasbora as food.
  • Spotted Gar ⛔ Avoid
    Hard care · Aggressive · 90 cm · 18–26 °C (64–79 °F)
    Exclamation Point Rasbora 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 2 cm): Wolf Cichlid will treat Exclamation Point Rasbora as food.

+ 97 more to avoid — the checker above flags every one.

Interactive tool

Check any fish against an exclamation point rasbora

Dial in your exact tank size and filter by result — the checker scores every species in our database against an exclamation point rasbora, with the reasoning for each verdict.

Tank-mate checker

Will it live with a Exclamation Point Rasbora?

We compare each fish against your exclamation point rasbora 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 Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
  • Celestial Pearl Danio✅ Compatible
    Peaceful · 2 cm · Medium care · 22–26 °C (72–79 °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 Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
    • Keep Celestial Pearl Danio 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 22–28 °C — no size, zone or temperament conflicts.
    • Keep Exclamation Point Rasbora 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.
  • Chili Rasbora✅ Compatible
    Peaceful · 2 cm · Medium care · 22–28 °C (72–82 °F)
    • Both are peaceful, and their water overlaps around 22–28 °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 Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
    • Keep Chili Rasbora 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 Exclamation Point Rasbora 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 Exclamation Point Rasbora 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 23–28 °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 Exclamation Point Rasbora 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.
  • Ember Tetra✅ Compatible
    Peaceful · 2 cm · Easy care · 24–28 °C (75–82 °F)
    • Both are peaceful, and their water overlaps around 24–28 °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 Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
    • Keep Ember Tetra in a shoal of 8+ or it gets stressed and nippy.
  • Emerald Dwarf Danio✅ Compatible
    Peaceful · 2 cm · Medium care · 20–24 °C (68–75 °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 Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
    • Keep Emerald Dwarf 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, 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 Exclamation Point Rasbora 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.
  • 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 Exclamation Point Rasbora 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; 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 Exclamation Point Rasbora 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.
  • Hummingbird Tetra✅ Compatible
    Peaceful · 1.8 cm · Hard care · 22–27 °C (72–81 °F)
    • Compatible on the things that matter: shared water near 22–27 °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 Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
    • Keep Hummingbird 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 23–28 °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 Exclamation Point Rasbora 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)
    • Compatible on the things that matter: shared water near 22–27 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Exclamation Point Rasbora 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 Exclamation Point Rasbora 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 Green Rasbora✅ Compatible
    Peaceful · 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.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
    • Keep Neon Green 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; 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 Exclamation Point Rasbora 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.
  • Nerite Snail✅ Compatible
    Peaceful · 2.5 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful, and their water overlaps around 22–28 °C — no size, zone or temperament conflicts.
    • Keep Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
  • Ramshorn Snail✅ Compatible
    Peaceful · 2 cm · Easy care · 20–28 °C (68–82 °F)
    • Compatible on the things that matter: shared water near 22–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
  • Red Lip Nerite Snail✅ Compatible
    Peaceful · 2 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful, and their water overlaps around 22–28 °C — no size, zone or temperament conflicts.
    • Keep Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
  • Ruby Tetra✅ Compatible
    Peaceful · 2 cm · Medium care · 23–28 °C (73–82 °F)
    • Both are peaceful, and their water overlaps around 23–28 °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 Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
    • Keep Ruby Tetra in a shoal of 8+ or it gets stressed and nippy.
  • Strawberry Rasbora✅ Compatible
    Peaceful · 2 cm · Medium care · 23–28 °C (73–82 °F)
    • Both are peaceful, and their water overlaps around 23–28 °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 Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
    • Keep Strawberry Rasbora in a shoal of 8+ or it gets stressed and nippy.
  • Tucano Tetra✅ Compatible
    Peaceful · 1.7 cm · Hard care · 23–28 °C (73–82 °F)
    • Both are peaceful, and their water overlaps around 23–28 °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 Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
    • Keep Tucano Tetra in a shoal of 10+ or it gets stressed and nippy.
  • Black Darter Tetra⚠️ With caution
    Semi-aggressive · 4 cm · Hard care · 21–28 °C (70–82 °F)
    • Expect Black Darter Tetra to harass Exclamation Point Rasbora at times; give dense cover and watch them at feeding.
    • Exclamation Point Rasbora is small enough to tempt Black Darter Tetra; only risk it in a densely planted setup with hiding spots.
    • Keep Exclamation Point Rasbora 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 Exclamation Point Rasbora — plant heavily and break up sight lines.
    • Black Ruby Barb may hunt Exclamation Point Rasbora, fry or shrimplets — safest in a heavily planted tank.
    • Your 75 L tank is below the ~100 L this pairing really wants — crowding raises aggression.
    • Keep Exclamation Point Rasbora 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 is semi-aggressive and may chase or nip the smaller Exclamation Point Rasbora — plant heavily and break up sight lines.
    • Black Skirt Tetra may hunt Exclamation Point Rasbora, fry or shrimplets — safest in a heavily planted tank.
    • Keep Exclamation Point Rasbora 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.
  • Blue Turbo Snail⚠️ With caution
    Peaceful · 5 cm · Medium care · 25–30 °C (77–86 °F)
    • Different pH ranges (5.5–7 vs 7.5–8.5); doable if you sit in the shared band, but not ideal long-term.
    • Keep Exclamation Point Rasbora in a shoal of 8+ 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 Exclamation Point Rasbora at times; give dense cover and watch them at feeding.
    • Desert Goby may hunt Exclamation Point Rasbora, fry or shrimplets — safest in a heavily planted tank.
    • Keep Exclamation Point Rasbora 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 Exclamation Point Rasbora 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.
  • Endler's Livebearer⚠️ With caution
    Peaceful · 3 cm · Easy care · 22–28 °C (72–82 °F)
    • Water hardness preferences differ (Exclamation Point Rasbora 1–8 vs Endler's Livebearer 10–25 dGH).
    • Keep Exclamation Point Rasbora 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.
  • GloFish Tetra⚠️ With caution
    Semi-aggressive · 6 cm · Easy care · 21–28 °C (70–82 °F)
    • Expect GloFish Tetra to harass Exclamation Point Rasbora at times; give dense cover and watch them at feeding.
    • GloFish Tetra may hunt Exclamation Point Rasbora, fry or shrimplets — safest in a heavily planted tank.
    • Keep Exclamation Point Rasbora 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.
  • 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 Exclamation Point Rasbora 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.
  • Odessa Barb⚠️ With caution
    Semi-aggressive · 6 cm · Easy care · 20–26 °C (68–79 °F)
    • Odessa Barb clearly outsizes Exclamation Point Rasbora and is semi-aggressive; risky unless the tank is big and well-planted.
    • Exclamation Point Rasbora is small enough to tempt Odessa Barb; only risk it in a densely planted setup with hiding spots.
    • Keep Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
    • Keep Odessa Barb in a shoal of 6+ or it gets stressed and nippy.
  • Pea Puffer⚠️ With caution
    Semi-aggressive · 2.5 cm · Medium care · 24–28 °C (75–82 °F)
    • Pea Puffer and Exclamation Point Rasbora are close in size, but the semi-aggressive one tends to dominate — add exclamation point rasbora in a group to spread the pressure.
    • Keep Exclamation Point Rasbora in a shoal of 8+ 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 Exclamation Point Rasbora — plant heavily and break up sight lines.
    • Watch for Rainbow Emperor Tetra picking off any exclamation point rasbora small enough to fit in its mouth.
    • Keep Exclamation Point Rasbora 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.
  • Scarlet Badis⚠️ With caution
    Semi-aggressive · 2 cm · Medium care · 22–27 °C (72–81 °F)
    • Scarlet Badis and Exclamation Point Rasbora are close in size, but the semi-aggressive one tends to dominate — add exclamation point rasbora in a group to spread the pressure.
    • Keep Exclamation Point Rasbora 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 Exclamation Point Rasbora — plant heavily and break up sight lines.
    • Serpae Tetra may hunt Exclamation Point Rasbora, fry or shrimplets — safest in a heavily planted tank.
    • Keep Exclamation Point Rasbora 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 Exclamation Point Rasbora at times; give dense cover and watch them at feeding.
    • Watch for Silvertip Tetra picking off any exclamation point rasbora small enough to fit in its mouth.
    • Keep Exclamation Point Rasbora 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.
  • Tiger Badis⚠️ With caution
    Semi-aggressive · 4 cm · Medium care · 22–24 °C (72–75 °F)
    • Expect Tiger Badis to harass Exclamation Point Rasbora at times; give dense cover and watch them at feeding.
    • Exclamation Point Rasbora is small enough to tempt Tiger Badis; only risk it in a densely planted setup with hiding spots.
    • Keep Exclamation Point Rasbora 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)
    • Alligator Gar (250 cm) is big enough to swallow the 2 cm Exclamation Point Rasbora whole.
    • Expect Alligator Gar to harass Exclamation Point Rasbora at times; give dense cover and watch them at feeding.
    • Your 75 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
    • Keep Exclamation Point Rasbora 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)
    • Exclamation Point Rasbora is bite-sized to a 90 cm predatory clown knifefish — it will be eaten.
    • Clown Knifefish is aggressive and may chase or nip the smaller Exclamation Point Rasbora — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
    • Keep Exclamation Point Rasbora 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)
    • Size gap is too large (100 vs 2 cm): Fire Eel will treat Exclamation Point Rasbora as food.
    • Fire Eel clearly outsizes Exclamation Point Rasbora 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 Exclamation Point Rasbora 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)
    • Size gap is too large (90 vs 2 cm): Koi will treat Exclamation Point Rasbora as food.
    • Water hardness preferences differ (Exclamation Point Rasbora 1–8 vs Koi 9–18 dGH).
    • Your 75 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
    • Keep Exclamation Point Rasbora 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)
    • Size gap is too large (120 vs 2 cm): Redtail Catfish will treat Exclamation Point Rasbora as food.
    • Expect Redtail Catfish to harass Exclamation Point Rasbora 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 Exclamation Point Rasbora 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)
    • Exclamation Point Rasbora 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 Exclamation Point Rasbora — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
    • Keep Exclamation Point Rasbora 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 2 cm): Wels Catfish will treat Exclamation Point Rasbora as food.
    • Wels Catfish clearly outsizes Exclamation Point Rasbora 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 Exclamation Point Rasbora 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 2 cm): Wolf Cichlid will treat Exclamation Point Rasbora as food.
    • Expect Wolf Cichlid to harass Exclamation Point Rasbora 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 Exclamation Point Rasbora 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 an exclamation point rasbora 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 an exclamation point rasbora

As a peaceful species, exclamation point rasbora 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.

Exclamation Point Rasbora grows to about 2 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 22–28 °C (72–82 °F), pH 5.5–7 and 1–8 dGH. Fish needing very different conditions — coldwater species, or hard-water lovers against a soft-water fish — rarely thrive side by side.

Exclamation Point Rasbora 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 an exclamation point rasbora live with other fish?

Yes — with the right companions. Our checker finds 132 compatible freshwater species for exclamation point rasbora. 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 an exclamation point rasbora?

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 an exclamation point rasbora?

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 exclamation point rasbora tank mates need?

Start from Exclamation Point Rasbora'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 Exclamation Point Rasbora care guide