Murray River Rainbowfish Tank Mates

• Agassiz's Dwarf Cichlid✅ Compatible
  Semi-aggressive · 9 cm · Medium care · 24–30 °C (75–86 °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.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Badis✅ Compatible
  Semi-aggressive · 8 cm · Medium care · 22–28 °C (72–82 °F)
  • Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Banded Dwarf Cichlid✅ Compatible
  Semi-aggressive · 7 cm · Medium care · 24–30 °C (75–86 °F)
  • Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Banjo Catfish✅ Compatible
  Peaceful · 15 cm · Medium 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.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Black Kuhli Loach✅ Compatible
  Peaceful · 8 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.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Bolivian Ram✅ Compatible
  Peaceful · 8 cm · Medium 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.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Brilliant Rasbora✅ Compatible
  Peaceful · 9 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 Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Keep Brilliant Rasbora in a shoal of 6+ or it gets stressed and nippy.
• Burmese Loach✅ Compatible
  Peaceful · 9 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.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Celebes Rainbowfish✅ Compatible
  Peaceful · 7 cm · Medium 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 Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Keep Celebes Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Cockatoo Dwarf Cichlid✅ Compatible
  Semi-aggressive · 8 cm · Medium care · 24–28 °C (75–82 °F)
  • Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Dwarf Gourami✅ Compatible
  Semi-aggressive · 8 cm · Medium care · 24–28 °C (75–82 °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 Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Giant Betta✅ Compatible
  Peaceful · 12 cm · Medium care · 24–28 °C (75–82 °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 Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Giant Kuhli Loach✅ Compatible
  Peaceful · 12 cm · Easy care · 24–30 °C (75–86 °F)
  • Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Murray River Rainbowfish 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 18–26 °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 Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Keep Gold Barb in a shoal of 6+ or it gets stressed and nippy.
• Golden Wonder Killifish✅ Compatible
  Semi-aggressive · 10 cm · Easy care · 22–28 °C (72–82 °F)
  • Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Goldeneye Dwarf Cichlid✅ Compatible
  Semi-aggressive · 8 cm · Easy care · 24–28 °C (75–82 °F)
  • Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Kribensis✅ Compatible
  Semi-aggressive · 10 cm · Easy care · 24–27 °C (75–81 °F)
  • Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Kuhli Loach✅ Compatible
  Peaceful · 10 cm · Easy care · 24–30 °C (75–86 °F)
  • Compatible on the things that matter: shared water near 24–26 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Leopard Frog Pleco✅ Compatible
  Peaceful · 9 cm · Medium care · 25–30 °C (77–86 °F)
  • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Molly✅ Compatible
  Peaceful · 10 cm · Easy 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 Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Splashing Tetra✅ Compatible
  Peaceful · 8 cm · Medium 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 Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Keep Splashing Tetra in a shoal of 6+ or it gets stressed and nippy.
• Spotted Rubbernose Pleco✅ Compatible
  Peaceful · 12 cm · Medium 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.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Thick-lipped Gourami✅ Compatible
  Peaceful · 9 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 Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Topaz Cichlid✅ Compatible
  Semi-aggressive · 10 cm · Medium care · 23–28 °C (73–82 °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.
  • Both favour the middle of the tank — offer enough cover so they aren't always in each other's space.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Arrowhead Puffer⚠️ With caution
  Aggressive · 12 cm · Hard care · 23–28 °C (73–82 °F)
  • Expect Arrowhead Puffer to harass Murray River Rainbowfish at times; give dense cover and watch them at feeding.
  • Your 75 L tank is below the ~132 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Auratus Cichlid⚠️ With caution
  Aggressive · 11 cm · Medium care · 23–28 °C (73–82 °F)
  • Auratus Cichlid and Murray River Rainbowfish are close in size, but the aggressive one tends to dominate — add murray river rainbowfish in a group to spread the pressure.
  • Your 75 L tank is below the ~190 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Keep Auratus Cichlid in a shoal of 6+ or it gets stressed and nippy.
• Banded Gourami⚠️ With caution
  Semi-aggressive · 12 cm · Easy care · 22–28 °C (72–82 °F)
  • Banded Gourami and Murray River Rainbowfish are close in size, but the semi-aggressive one tends to dominate — add murray river rainbowfish in a group to spread the pressure.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Boesemani Rainbowfish⚠️ With caution
  Peaceful · 11 cm · Medium care · 24–28 °C (75–82 °F)
  • Your 75 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Keep Boesemani Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Bristlenose Pleco⚠️ With caution
  Peaceful · 12 cm · Easy care · 23–30 °C (73–86 °F)
  • Your 75 L tank is below the ~95 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Bucktooth Tetra⚠️ With caution
  Aggressive · 12 cm · Medium care · 23–28 °C (73–82 °F)
  • Bucktooth Tetra and Murray River Rainbowfish are close in size, but the aggressive one tends to dominate — add murray river rainbowfish in a group to spread the pressure.
  • Your 75 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Keep Bucktooth Tetra in a shoal of 8+ or it gets stressed and nippy.
• Cupid Cichlid⚠️ With caution
  Semi-aggressive · 12 cm · Medium care · 24–29 °C (75–84 °F)
  • Cupid Cichlid is semi-aggressive and may chase or nip the smaller Murray River Rainbowfish — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~110 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Golden Vampire Pleco⚠️ With caution
  Semi-aggressive · 11 cm · Medium care · 26–30 °C (79–86 °F)
  • Golden Vampire Pleco is semi-aggressive and may chase or nip the smaller Murray River Rainbowfish — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Ice Blue Cichlid⚠️ With caution
  Aggressive · 12 cm · Medium care · 24–28 °C (75–82 °F)
  • Expect Ice Blue Cichlid to harass Murray River Rainbowfish at times; give dense cover and watch them at feeding.
  • Your 75 L tank is below the ~190 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Mascara Barb⚠️ With caution
  Peaceful · 12 cm · Medium care · 20–25 °C (68–77 °F)
  • Your 75 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Keep Mascara Barb in a shoal of 8+ or it gets stressed and nippy.
• Medusa Pleco⚠️ With caution
  Peaceful · 12 cm · Medium care · 26–30 °C (79–86 °F)
  • Your 75 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Pearl Gourami⚠️ With caution
  Peaceful · 12 cm · Medium care · 24–28 °C (75–82 °F)
  • Your 75 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Pictus Catfish⚠️ With caution
  Semi-aggressive · 12 cm · Medium care · 22–27 °C (72–81 °F)
  • Pictus Catfish is semi-aggressive and may chase or nip the smaller Murray River Rainbowfish — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~210 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Powder Blue Cichlid⚠️ With caution
  Semi-aggressive · 12 cm · Medium care · 24–28 °C (75–82 °F)
  • Powder Blue Cichlid is semi-aggressive and may chase or nip the smaller Murray River Rainbowfish — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~170 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Keep Powder Blue Cichlid in a shoal of 6+ or it gets stressed and nippy.
• Rubber Lip Pleco⚠️ With caution
  Peaceful · 12 cm · Easy care · 20–26 °C (68–79 °F)
  • Your 75 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Tiger Betta⚠️ With caution
  Semi-aggressive · 11 cm · Hard care · 22–27 °C (72–81 °F)
  • Tiger Betta is semi-aggressive and may chase or nip the smaller Murray River Rainbowfish — plant heavily and break up sight lines.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Alligator Gar⛔ Not recommended
  Aggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
  • Size gap is too large (250 vs 11 cm): Alligator Gar will treat Murray River Rainbowfish as food.
  • Expect Alligator Gar to harass Murray River Rainbowfish 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 Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Clown Knifefish⛔ Not recommended
  Aggressive · 90 cm · Hard care · 24–28 °C (75–82 °F)
  • Murray River Rainbowfish 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 Murray River Rainbowfish — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Fire Eel⛔ Not recommended
  Semi-aggressive · 100 cm · Medium care · 24–28 °C (75–82 °F)
  • Fire Eel (100 cm) is big enough to swallow the 11 cm Murray River Rainbowfish whole.
  • Fire Eel is semi-aggressive and may chase or nip the smaller Murray River Rainbowfish — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Koi⛔ Not recommended
  Peaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
  • Size gap is too large (90 vs 11 cm): Koi will treat Murray River Rainbowfish as food.
  • Your 75 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Redtail Catfish⛔ Not recommended
  Aggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
  • Size gap is too large (120 vs 11 cm): Redtail Catfish will treat Murray River Rainbowfish as food.
  • Redtail Catfish is aggressive and may chase or nip the smaller Murray River Rainbowfish — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Spotted Gar⛔ Not recommended
  Aggressive · 90 cm · Hard care · 18–26 °C (64–79 °F)
  • Size gap is too large (90 vs 11 cm): Spotted Gar will treat Murray River Rainbowfish as food.
  • Spotted Gar clearly outsizes Murray River Rainbowfish and is aggressive; risky unless the tank is big and well-planted.
  • Your 75 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Wels Catfish⛔ Not recommended
  Aggressive · 300 cm · Hard care · 15–25 °C (59–77 °F)
  • Wels Catfish (300 cm) is big enough to swallow the 11 cm Murray River Rainbowfish whole.
  • Wels Catfish is aggressive and may chase or nip the smaller Murray River Rainbowfish — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
  • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
• Wolf Cichlid⛔ Not recommended
  Aggressive · 72 cm · Hard care · 24–30 °C (75–86 °F)
  • Size gap is too large (72 vs 11 cm): Wolf Cichlid will treat Murray River Rainbowfish as food.
  • Expect Wolf Cichlid to harass Murray River Rainbowfish 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 Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.

Compatibility is computed from each species' care data — a strong starting point, not a guarantee. Individual temperament varies, so always introduce new fish slowly and watch them.