Agassiz's Dwarf Cichlid Tank Mates

• Adolf's Cory✅ Compatible
  Peaceful · 5.5 cm · Medium care · 22–26 °C (72–79 °F)
  • Semi-aggressive + Peaceful, 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 bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Keep Adolf's Cory in a shoal of 6+ or it gets stressed and nippy.
• Agassiz's Corydoras✅ Compatible
  Peaceful · 6 cm · Easy care · 22–28 °C (72–82 °F)
  • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Keep Agassiz's Corydoras 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)
  • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
• Blood Red Tiger Pleco✅ Compatible
  Peaceful · 6 cm · Medium care · 24–29 °C (75–84 °F)
  • Semi-aggressive + Peaceful, 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 bottom of the tank — offer enough cover so they aren't always in each other's space.
• Bolivian Ram✅ Compatible
  Peaceful · 8 cm · Medium care · 24–28 °C (75–82 °F)
  • Semi-aggressive + Peaceful, 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 bottom of the tank — offer enough cover so they aren't always in each other's space.
• Burmese Loach✅ Compatible
  Peaceful · 9 cm · Easy care · 22–28 °C (72–82 °F)
  • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
• Butterfly Hillstream Loach✅ Compatible
  Peaceful · 6 cm · Hard care · 18–24 °C (64–75 °F)
  • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–24 °C — no size, zone or temperament conflicts.
  • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
• 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.
  • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Keep Corydoras Catfish 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)
  • Compatible on the things that matter: shared water near 24–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • 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.
  • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • 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)
  • Semi-aggressive + Peaceful, 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 bottom of the tank — offer enough cover so they aren't always in each other's space.
• Giant Betta✅ Compatible
  Peaceful · 12 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.
• Giant Kuhli Loach✅ Compatible
  Peaceful · 12 cm · Easy care · 24–30 °C (75–86 °F)
  • Semi-aggressive + Peaceful, 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 bottom of the tank — offer enough cover so they aren't always in each other's space.
• Hillstream Loach✅ Compatible
  Peaceful · 6 cm · Hard care · 20–24 °C (68–75 °F)
  • Semi-aggressive + Peaceful, 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 bottom of the tank — offer enough cover so they aren't always in each other's space.
• Kuhli Loach✅ Compatible
  Peaceful · 10 cm · Easy care · 24–30 °C (75–86 °F)
  • Semi-aggressive + Peaceful, 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 bottom of the tank — offer enough cover so they aren't always in each other's space.
• Leopard Frog Pleco✅ Compatible
  Peaceful · 9 cm · Medium care · 25–30 °C (77–86 °F)
  • Semi-aggressive + Peaceful, 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 bottom of the tank — offer enough cover so they aren't always in each other's space.
• Murray River Rainbowfish✅ Compatible
  Peaceful · 11 cm · Easy care · 15–26 °C (59–79 °F)
  • Semi-aggressive + Peaceful, 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.
• Peppered Corydoras✅ Compatible
  Peaceful · 7 cm · Easy care · 18–26 °C (64–79 °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 bottom of the tank — offer enough cover so they aren't always in each other's space.
  • 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)
  • Compatible on the things that matter: shared water near 24–29 °C, workable temperaments, and no predator-and-prey size gap.
  • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
• Slate Corydoras✅ Compatible
  Peaceful · 6 cm · Medium care · 23–28 °C (73–82 °F)
  • Semi-aggressive + Peaceful, 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 bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Keep Slate Corydoras 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)
  • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–26 °C — no size, zone or temperament conflicts.
  • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • 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)
  • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
  • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Keep Spotted Corydoras 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)
  • Semi-aggressive + Peaceful, 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 bottom of the tank — offer enough cover so they aren't always in each other's space.
• Sterbai Corydoras✅ Compatible
  Peaceful · 6.5 cm · Medium care · 24–30 °C (75–86 °F)
  • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–30 °C — no size, zone or temperament conflicts.
  • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Keep Sterbai Corydoras in a shoal of 6+ or it gets stressed and nippy.
• Afra Cichlid⚠️ With caution
  Semi-aggressive · 10 cm · Medium care · 24–28 °C (75–82 °F)
  • pH preferences only just meet (Agassiz's Dwarf Cichlid 5–7 vs Afra Cichlid 7.8–8.6) — target the overlap and acclimate slowly.
  • One likes softer water and the other harder (0–8 vs 10–20 dGH) — a compromise, not a perfect match.
  • Agassiz's Dwarf Cichlid and Afra Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
  • Your 75 L tank is below the ~150 L this pairing really wants — crowding raises aggression.
  • Keep Afra Cichlid in a shoal of 6+ or it gets stressed and nippy.
• Bandit Cichlid⚠️ With caution
  Semi-aggressive · 9 cm · Medium care · 22–26 °C (72–79 °F)
  • Agassiz's Dwarf Cichlid and Bandit Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
  • Your 75 L tank is below the ~150 L this pairing really wants — crowding raises aggression.
  • Keep Bandit Cichlid in a shoal of 6+ or it gets stressed and nippy.
• Bearded Corydoras⚠️ With caution
  Peaceful · 10 cm · Medium care · 18–24 °C (64–75 °F)
  • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
  • Keep Bearded Corydoras in a shoal of 6+ or it gets stressed and nippy.
• Brichardi Cichlid⚠️ With caution
  Semi-aggressive · 9 cm · Medium care · 24–28 °C (75–82 °F)
  • pH preferences only just meet (Agassiz's Dwarf Cichlid 5–7 vs Brichardi Cichlid 7.8–9) — target the overlap and acclimate slowly.
  • One likes softer water and the other harder (0–8 vs 10–20 dGH) — a compromise, not a perfect match.
  • Agassiz's Dwarf Cichlid and Brichardi Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
  • Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
• Brilliant Rasbora⚠️ With caution
  Peaceful · 9 cm · Easy care · 22–28 °C (72–82 °F)
  • Agassiz's Dwarf Cichlid is semi-aggressive and may chase or nip the smaller Brilliant Rasbora — plant heavily and break up sight lines.
  • Keep Brilliant Rasbora in a shoal of 6+ or it gets stressed and nippy.
• Clown Pleco⚠️ With caution
  Peaceful · 9 cm · Medium care · 24–28 °C (75–82 °F)
  • Your 75 L tank is below the ~80 L this pairing really wants — crowding raises aggression.
• Clown Rasbora⚠️ With caution
  Peaceful · 10 cm · Medium care · 23–28 °C (73–82 °F)
  • Your 75 L tank is below the ~110 L this pairing really wants — crowding raises aggression.
  • Keep Clown Rasbora in a shoal of 6+ or it gets stressed and nippy.
• Daffodil Cichlid⚠️ With caution
  Semi-aggressive · 10 cm · Medium care · 23–27 °C (73–81 °F)
  • Different pH ranges (5–7 vs 7.8–9); doable if you sit in the shared band, but not ideal long-term.
  • Water hardness preferences differ (Agassiz's Dwarf Cichlid 0–8 vs Daffodil Cichlid 10–20 dGH).
  • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Your 75 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
• Electric Yellow Cichlid⚠️ With caution
  Semi-aggressive · 10 cm · Medium care · 23–26 °C (73–79 °F)
  • pH preferences only just meet (Agassiz's Dwarf Cichlid 5–7 vs Electric Yellow Cichlid 7.8–8.9) — target the overlap and acclimate slowly.
  • One likes softer water and the other harder (0–8 vs 10–20 dGH) — a compromise, not a perfect match.
  • Agassiz's Dwarf Cichlid and Electric Yellow Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
  • Your 75 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
• Giant Danio⚠️ With caution
  Peaceful · 10 cm · Easy care · 20–27 °C (68–81 °F)
  • Your 75 L tank is below the ~110 L this pairing really wants — crowding raises aggression.
  • Keep Giant Danio in a shoal of 6+ or it gets stressed and nippy.
• Golden Wonder Killifish⚠️ With caution
  Semi-aggressive · 10 cm · Easy care · 22–28 °C (72–82 °F)
  • Agassiz's Dwarf Cichlid and Golden Wonder Killifish can both be territorial; doable with space and dense planting, but watch for chasing.
• Keyhole Cichlid⚠️ With caution
  Peaceful · 10 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.
• Mexican Tetra⚠️ With caution
  Semi-aggressive · 9 cm · Easy care · 18–25 °C (64–77 °F)
  • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Your 75 L tank is below the ~110 L this pairing really wants — crowding raises aggression.
  • Keep Mexican Tetra in a shoal of 6+ or it gets stressed and nippy.
• Silver Tetra⚠️ With caution
  Peaceful · 9 cm · Easy care · 24–28 °C (75–82 °F)
  • Agassiz's Dwarf Cichlid is semi-aggressive and may chase or nip the smaller Silver Tetra — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
  • Keep Silver Tetra in a shoal of 6+ or it gets stressed and nippy.
• Thick-lipped Gourami⚠️ With caution
  Peaceful · 9 cm · Easy care · 22–28 °C (72–82 °F)
  • Agassiz's Dwarf Cichlid is semi-aggressive and may chase or nip the smaller Thick-lipped Gourami — plant heavily and break up sight lines.
• Zebra Loach⚠️ With caution
  Peaceful · 9 cm · Medium care · 23–26 °C (73–79 °F)
  • Your 75 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
• Alligator Gar⛔ Not recommended
  Aggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
  • Agassiz's Dwarf Cichlid and Alligator Gar are both territorial and at least one is outright aggressive — expect serious fighting.
  • Alligator Gar (250 cm) is big enough to swallow the 9 cm Agassiz's Dwarf Cichlid whole.
  • 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)
  • Two assertive fish, one genuinely aggressive: Agassiz's Dwarf Cichlid and Clown Knifefish will hold territory and clash.
  • Clown Knifefish (90 cm) is big enough to swallow the 9 cm Agassiz's Dwarf Cichlid whole.
  • 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)
  • Agassiz's Dwarf Cichlid is bite-sized to a 100 cm predatory fire eel — it will be eaten.
  • Agassiz's Dwarf Cichlid and Fire Eel can both be territorial; doable with space and dense planting, but watch for chasing.
  • 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)
  • Size gap is too large (90 vs 9 cm): Koi will treat Agassiz's Dwarf Cichlid as food.
  • One likes softer water and the other harder (0–8 vs 9–18 dGH) — a compromise, not a perfect match.
  • 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)
  • Agassiz's Dwarf Cichlid and Redtail Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
  • Redtail Catfish (120 cm) is big enough to swallow the 9 cm Agassiz's Dwarf Cichlid whole.
  • 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)
  • Agassiz's Dwarf Cichlid and Spotted Gar are both territorial and at least one is outright aggressive — expect serious fighting.
  • Spotted Gar (90 cm) is big enough to swallow the 9 cm Agassiz's Dwarf Cichlid whole.
  • 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)
  • Agassiz's Dwarf Cichlid and Wels Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
  • Size gap is too large (300 vs 9 cm): Wels Catfish will treat Agassiz's Dwarf Cichlid as food.
  • 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)
  • Two assertive fish, one genuinely aggressive: Agassiz's Dwarf Cichlid and Wolf Cichlid will hold territory and clash.
  • Agassiz's Dwarf Cichlid is bite-sized to a 72 cm predatory wolf cichlid — it will be eaten.
  • 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.