Croaking Gourami Tank Mates

Croaking Gourami is peaceful, so its tank mates need choosing with care. Here are the 139 freshwater species that pair well with a croaking gourami — plus the 67 to avoid — with a live checker you can tune to your own tank.

By The Aquarium DB Team • Updated June 7, 2026 • Full Croaking Gourami care guide →
Best matches

The best tank mates for a croaking gourami

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

Croaking Gourami tank mates that can work with care

  • Afra Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 10 cm · 24–28 °C (75–82 °F)
    Different pH ranges (6–7.5 vs 7.8–8.6); doable if you sit in the shared band, but not ideal long-term.
  • African Butterfly Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 8 cm · 22–28 °C (72–82 °F)
    Expect African Butterfly Cichlid to harass Croaking Gourami at times; give dense cover and watch them at feeding.
  • Agassiz's Dwarf Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 9 cm · 24–30 °C (75–86 °F)
    Agassiz's Dwarf Cichlid is semi-aggressive and may chase or nip the smaller Croaking Gourami — plant heavily and break up sight lines.
  • Amano Shrimp ⚠️ With caution
    Easy care · Peaceful · 5 cm · 18–28 °C (64–82 °F)
    Croaking Gourami may eat Amano Shrimp or pick off its shrimplets — a densely planted tank with moss gives them a fighting chance.
  • 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 Croaking Gourami and is semi-aggressive; risky unless the tank is big and well-planted.
  • Arrowhead Puffer ⚠️ With caution
    Hard care · Aggressive · 12 cm · 23–28 °C (73–82 °F)
    Arrowhead Puffer is aggressive and may chase or nip the smaller Croaking Gourami — 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 Croaking Gourami — plant heavily and break up sight lines.

+ 126 more “with caution” pairings — see the interactive checker above.

Avoid

Fish to avoid keeping with a croaking gourami

  • Wels Catfish ⛔ Avoid
    Hard care · Aggressive · 300 cm · 15–25 °C (59–77 °F)
    Wels Catfish (300 cm) is big enough to swallow the 7 cm Croaking Gourami whole.
  • Alligator Gar ⛔ Avoid
    Hard care · Aggressive · 250 cm · 24–28 °C (75–82 °F)
    Alligator Gar (250 cm) is big enough to swallow the 7 cm Croaking Gourami whole.
  • Redtail Catfish ⛔ Avoid
    Hard care · Aggressive · 120 cm · 24–27 °C (75–81 °F)
    Croaking Gourami 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 7 cm Croaking Gourami whole.
  • Clown Knifefish ⛔ Avoid
    Hard care · Aggressive · 90 cm · 24–28 °C (75–82 °F)
    Croaking Gourami 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)
    Koi (90 cm) is big enough to swallow the 7 cm Croaking Gourami whole.
  • Spotted Gar ⛔ Avoid
    Hard care · Aggressive · 90 cm · 18–26 °C (64–79 °F)
    Size gap is too large (90 vs 7 cm): Spotted Gar will treat Croaking Gourami as food.
  • Wolf Cichlid ⛔ Avoid
    Hard care · Aggressive · 72 cm · 24–30 °C (75–86 °F)
    Croaking Gourami is bite-sized to a 72 cm predatory wolf cichlid — it will be eaten.

+ 59 more to avoid — the checker above flags every one.

Interactive tool

Check any fish against a croaking gourami

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

Tank-mate checker

Will it live with a Croaking Gourami?

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

  • Agassiz's Corydoras✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
    • Keep Agassiz's Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Bamboo Shrimp✅ Compatible
    Peaceful · 8 cm · Medium care · 22–27 °C (72–81 °F)
    • Both are peaceful, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
  • Black Kuhli Loach✅ Compatible
    Peaceful · 8 cm · Easy care · 23–28 °C (73–82 °F)
    • Both are peaceful, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Blackline Rasbora✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Blackline Rasbora in a shoal of 6+ or it gets stressed and nippy.
  • Blood Red Tiger Pleco✅ Compatible
    Peaceful · 6 cm · Medium care · 24–29 °C (75–84 °F)
    • Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Bolivian Ram✅ Compatible
    Peaceful · 8 cm · Medium care · 24–28 °C (75–82 °F)
    • Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Butterfly Hillstream Loach✅ Compatible
    Peaceful · 6 cm · Hard care · 18–24 °C (64–75 °F)
    • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Celebes Rainbowfish✅ Compatible
    Peaceful · 7 cm · Medium care · 22–28 °C (72–82 °F)
    • Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Celebes Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Corydoras Catfish✅ Compatible
    Peaceful · 6.5 cm · Easy care · 22–26 °C (72–79 °F)
    • Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Corydoras Catfish in a shoal of 6+ or it gets stressed and nippy.
  • Costa's Tetra✅ Compatible
    Peaceful · 7 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 Costa's Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Desert Goby✅ Compatible
    Semi-aggressive · 6 cm · Easy care · 18–28 °C (64–82 °F)
    • Peaceful + Semi-aggressive, but with no direct clash here; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Diamond Tetra✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Diamond Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Elegant Cory✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
    • Keep Elegant Cory in a shoal of 6+ or it gets stressed and nippy.
  • False Julii Corydoras✅ Compatible
    Peaceful · 6 cm · Easy care · 22–26 °C (72–79 °F)
    • Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep False Julii Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • German Blue Ram✅ Compatible
    Peaceful · 6 cm · Hard care · 27–30 °C (81–86 °F)
    • Compatible on the things that matter: shared water near 27–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Glass Bloodfin Tetra✅ Compatible
    Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
    • Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Glass Bloodfin Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Gold Barb✅ Compatible
    Peaceful · 7.5 cm · Easy care · 18–26 °C (64–79 °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 Gold Barb in a shoal of 6+ or it gets stressed and nippy.
  • Peacock Gudgeon✅ Compatible
    Peaceful · 7 cm · Medium care · 22–28 °C (72–82 °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.
  • Peppered Corydoras✅ Compatible
    Peaceful · 7 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.
    • Keep Peppered Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Rio Negro Checkerboard Cichlid✅ Compatible
    Peaceful · 7 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.
  • Splashing Tetra✅ Compatible
    Peaceful · 8 cm · Medium care · 22–28 °C (72–82 °F)
    • Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Splashing Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Spotfin Corydoras✅ Compatible
    Peaceful · 6.5 cm · Easy care · 22–26 °C (72–79 °F)
    • Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Spotfin Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Spotted Corydoras✅ Compatible
    Peaceful · 7 cm · Easy care · 22–27 °C (72–81 °F)
    • Compatible on the things that matter: shared water near 24–27 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Spotted Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • Sterbai Corydoras✅ Compatible
    Peaceful · 6.5 cm · Medium care · 24–30 °C (75–86 °F)
    • Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Sterbai Corydoras in a shoal of 6+ or it gets stressed and nippy.
  • African Butterfly Cichlid⚠️ With caution
    Semi-aggressive · 8 cm · Medium care · 22–28 °C (72–82 °F)
    • Expect African Butterfly Cichlid to harass Croaking Gourami at times; give dense cover and watch them at feeding.
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
  • Ash Lipped Apisto⚠️ With caution
    Semi-aggressive · 7 cm · Hard care · 24–29 °C (75–84 °F)
    • Ash Lipped Apisto is semi-aggressive and may chase or nip the smaller Croaking Gourami — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
  • Banded Dwarf Cichlid⚠️ With caution
    Semi-aggressive · 7 cm · Medium care · 24–30 °C (75–86 °F)
    • Expect Banded Dwarf Cichlid to harass Croaking Gourami at times; give dense cover and watch them at feeding.
  • Betta⚠️ With caution
    Semi-aggressive · 6.5 cm · Easy care · 24–28 °C (75–82 °F)
    • Croaking Gourami and Betta are both labyrinth fish and often treat each other as rivals — give a large, broken-up tank and be ready to separate them.
  • Bleeding Heart Tetra⚠️ With caution
    Semi-aggressive · 7 cm · Medium care · 23–28 °C (73–82 °F)
    • Bleeding Heart Tetra is semi-aggressive and may chase or nip the smaller Croaking Gourami — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Bleeding Heart Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Bright Diamond Tetra⚠️ With caution
    Peaceful · 7 cm · Hard care · 24–28 °C (75–82 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Bright Diamond Tetra in a shoal of 8+ or it gets stressed and nippy.
  • Buenos Aires Tetra⚠️ With caution
    Semi-aggressive · 7 cm · Easy care · 18–26 °C (64–79 °F)
    • Buenos Aires Tetra and Croaking Gourami are close in size, but the semi-aggressive one tends to dominate — add croaking gourami in a group to spread the pressure.
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Buenos Aires Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Colombian Tetra⚠️ With caution
    Semi-aggressive · 6.5 cm · Easy care · 24–28 °C (75–82 °F)
    • Colombian Tetra is a notorious fin-nipper — even though Croaking Gourami is larger, an active shoal will harass its trailing fins. Only safe in a full group of 6+ with plenty of cover.
    • Your 75 L tank is below the ~114 L this pairing really wants — crowding raises aggression.
    • Keep Colombian Tetra in a shoal of 6+ or it gets stressed and nippy.
  • Hongsloi Dwarf Cichlid⚠️ With caution
    Semi-aggressive · 7 cm · Medium care · 24–29 °C (75–84 °F)
    • Hongsloi Dwarf Cichlid and Croaking Gourami are close in size, but the semi-aggressive one tends to dominate — add croaking gourami in a group to spread the pressure.
  • Mahachai Betta⚠️ With caution
    Aggressive · 7 cm · Medium care · 24–30 °C (75–86 °F)
    • Mahachai Betta is aggressive and may chase or nip the smaller Croaking Gourami — plant heavily and break up sight lines.
    • Croaking Gourami and Mahachai Betta are both labyrinth fish and often treat each other as rivals — give a large, broken-up tank and be ready to separate them.
  • Melon Barb⚠️ With caution
    Peaceful · 7 cm · Easy care · 22–28 °C (72–82 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Melon Barb in a shoal of 8+ or it gets stressed and nippy.
  • Rounded Filament Barb⚠️ With caution
    Peaceful · 7 cm · Medium care · 22–27 °C (72–81 °F)
    • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
    • Keep Rounded Filament Barb in a shoal of 6+ or it gets stressed and nippy.
  • Roundtail Paradise Fish⚠️ With caution
    Semi-aggressive · 7 cm · Easy care · 10–26 °C (50–79 °F)
    • Roundtail Paradise Fish and Croaking Gourami are close in size, but the semi-aggressive one tends to dominate — add croaking gourami in a group to spread the pressure.
    • Croaking Gourami and Roundtail Paradise Fish are both labyrinth fish and often treat each other as rivals — give a large, broken-up tank and be ready to separate them.
  • Sumo Loach⚠️ With caution
    Semi-aggressive · 7 cm · Medium care · 22–26 °C (72–79 °F)
    • Sumo Loach is semi-aggressive and may chase or nip the smaller Croaking Gourami — plant heavily and break up sight lines.
  • Tiger Barb⚠️ With caution
    Semi-aggressive · 7 cm · Easy care · 22–28 °C (72–82 °F)
    • Tiger Barb is semi-aggressive and may chase or nip the smaller Croaking Gourami — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~95 L this pairing really wants — crowding raises aggression.
    • Keep Tiger Barb in a shoal of 6+ or it gets stressed and nippy.
  • Umbrella Dwarf Cichlid⚠️ With caution
    Semi-aggressive · 7 cm · Medium care · 20–26 °C (68–79 °F)
    • Umbrella Dwarf Cichlid and Croaking Gourami are close in size, but the semi-aggressive one tends to dominate — add croaking gourami in a group to spread the pressure.
  • 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 7 cm Croaking Gourami whole.
    • Alligator Gar is aggressive and may chase or nip the smaller Croaking Gourami — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
  • Clown Knifefish⛔ Not recommended
    Aggressive · 90 cm · Hard care · 24–28 °C (75–82 °F)
    • Croaking Gourami is bite-sized to a 90 cm predatory clown knifefish — it will be eaten.
    • Expect Clown Knifefish to harass Croaking Gourami 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.
  • 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 7 cm Croaking Gourami whole.
    • Expect Fire Eel to harass Croaking Gourami at times; give dense cover and watch them at feeding.
    • Your 75 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
  • Koi⛔ Not recommended
    Peaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
    • Koi (90 cm) is big enough to swallow the 7 cm Croaking Gourami whole.
    • Your 75 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
  • Redtail Catfish⛔ Not recommended
    Aggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
    • Croaking Gourami is bite-sized to a 120 cm predatory redtail catfish — it will be eaten.
    • Expect Redtail Catfish to harass Croaking Gourami 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.
  • Spotted Gar⛔ Not recommended
    Aggressive · 90 cm · Hard care · 18–26 °C (64–79 °F)
    • Size gap is too large (90 vs 7 cm): Spotted Gar will treat Croaking Gourami as food.
    • Spotted Gar is aggressive and may chase or nip the smaller Croaking Gourami — plant heavily and break up sight lines.
    • Your 75 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
  • 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 7 cm Croaking Gourami whole.
    • Expect Wels Catfish to harass Croaking Gourami 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.
  • Wolf Cichlid⛔ Not recommended
    Aggressive · 72 cm · Hard care · 24–30 °C (75–86 °F)
    • Croaking Gourami is bite-sized to a 72 cm predatory wolf cichlid — it will be eaten.
    • Expect Wolf Cichlid to harass Croaking Gourami 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.

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 croaking gourami 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 croaking gourami

As a peaceful species, croaking gourami 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.

Croaking Gourami grows to about 7 cm, so avoid tank mates small enough to be seen as food — as a rule of thumb, skip anything under roughly 4 cm. Match its water, too: aim for 24–28 °C (75–82 °F), pH 6–7.5 and 2–15 dGH. Fish needing very different conditions — coldwater species, or hard-water lovers against a soft-water fish — rarely thrive side by side.

Croaking Gourami doesn't need its own kind to feel secure; think twice before keeping more than one if it is territorial. 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 croaking gourami live with other fish?

Yes — with the right companions. Our checker finds 139 compatible freshwater species for croaking gourami. 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 croaking gourami?

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 croaking gourami?

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 croaking gourami tank mates need?

Start from Croaking Gourami'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.

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