Endler's Livebearer Tank Mates

• African Dwarf Frog✅ Compatible
  Peaceful · 4 cm · Medium care · 22–26 °C (72–79 °F)
  • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
• Amapá Tetra✅ Compatible
  Peaceful · 4 cm · Medium care · 24–27 °C (75–81 °F)
  • Both are peaceful, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Amapá Tetra in a shoal of 6+ or it gets stressed and nippy.
• 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 Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
• Blackwing Hatchetfish✅ Compatible
  Peaceful · 3.5 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 top of the tank — offer enough cover so they aren't always in each other's space.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Blackwing Hatchetfish in a shoal of 6+ or it gets stressed and nippy.
• Blue Danio✅ Compatible
  Peaceful · 4 cm · Easy care · 21–26 °C (70–79 °F)
  • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Blue Danio in a shoal of 6+ or it gets stressed and nippy.
• Blue Emperor Tetra✅ Compatible
  Peaceful · 4 cm · Medium care · 23–27 °C (73–81 °F)
  • Compatible on the things that matter: shared water near 23–27 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Blue Emperor Tetra 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 Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Cherry Shrimp in a shoal of 10+ or it gets stressed and nippy.
• Clown Killifish✅ Compatible
  Peaceful · 3.5 cm · Medium care · 22–26 °C (72–79 °F)
  • Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
  • Both favour the top of the tank — offer enough cover so they aren't always in each other's space.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Clown Killifish in a shoal of 6+ 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.
  • Keep Endler's Livebearer in a shoal of 6+ 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)
  • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Dwarf Spotted Rasbora in a shoal of 8+ or it gets stressed and nippy.
• Eyespot Rasbora✅ Compatible
  Peaceful · 3.5 cm · Medium care · 20–25 °C (68–77 °F)
  • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Eyespot Rasbora 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)
  • Compatible on the things that matter: shared water near 22–26 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Glowlight Danio in a shoal of 8+ or it gets stressed and nippy.
• Glowlight Rasbora✅ Compatible
  Peaceful · 3.5 cm · Easy care · 23–28 °C (73–82 °F)
  • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Glowlight Rasbora in a shoal of 8+ or it gets stressed and nippy.
• Gold Ring Danio✅ Compatible
  Peaceful · 3 cm · Easy care · 18–26 °C (64–79 °F)
  • Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Gold Ring Danio 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)
  • Both are peaceful, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Lambchop Rasbora in a shoal of 6+ or it gets stressed and nippy.
• Malaysian Trumpet Snail✅ Compatible
  Peaceful · 3 cm · Easy care · 21–27 °C (70–81 °F)
  • Both are peaceful, and their water overlaps around 22–27 °C — no size, zone or temperament conflicts.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
• Neon Tetra✅ Compatible
  Peaceful · 3 cm · Easy care · 20–26 °C (68–79 °F)
  • Both are peaceful, and their water overlaps around 22–26 °C — no size, zone or temperament conflicts.
  • Keep Endler's Livebearer in a shoal of 6+ 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; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
• Northern Glowlight Danio✅ Compatible
  Peaceful · 3.5 cm · Medium care · 18–24 °C (64–75 °F)
  • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Northern Glowlight Danio in a shoal of 8+ or it gets stressed and nippy.
• Pea Puffer✅ Compatible
  Semi-aggressive · 2.5 cm · Medium care · 24–28 °C (75–82 °F)
  • Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
• Pygmy Corydoras✅ Compatible
  Peaceful · 3.2 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.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Pygmy Corydoras in a shoal of 8+ or it gets stressed and nippy.
• Tail-spot Corydoras✅ Compatible
  Peaceful · 3 cm · Easy care · 22–28 °C (72–82 °F)
  • Both are peaceful; temperature, pH and hardness ranges all overlap and neither outsizes the other enough to be a threat.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Tail-spot Corydoras in a shoal of 8+ or it gets stressed and nippy.
• Tailspotted Oto✅ Compatible
  Peaceful · 3.5 cm · Medium care · 22–27 °C (72–81 °F)
  • Compatible on the things that matter: shared water near 22–27 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Tailspotted Oto in a shoal of 6+ or it gets stressed and nippy.
• Trinidad Guppy✅ Compatible
  Peaceful · 3 cm · Easy care · 19–24 °C (66–75 °F)
  • Both are peaceful, and their water overlaps around 22–24 °C — no size, zone or temperament conflicts.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
• Black Darter Tetra⚠️ With caution
  Semi-aggressive · 4 cm · Hard care · 21–28 °C (70–82 °F)
  • Different pH ranges (7–8.5 vs 3.5–6.5); doable if you sit in the shared band, but not ideal long-term.
  • Water hardness preferences differ (Endler's Livebearer 10–25 vs Black Darter Tetra 0–5 dGH).
  • Black Darter Tetra is semi-aggressive and may chase or nip the smaller Endler's Livebearer — plant heavily and break up sight lines.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
• Cardinal Tetra⚠️ With caution
  Peaceful · 4 cm · Medium care · 23–27 °C (73–81 °F)
  • Water hardness preferences differ (Endler's Livebearer 10–25 vs Cardinal Tetra 1–6 dGH).
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Cardinal Tetra in a shoal of 6+ or it gets stressed and nippy.
• Chili Rasbora⚠️ With caution
  Peaceful · 2 cm · Medium care · 22–28 °C (72–82 °F)
  • One likes softer water and the other harder (10–25 vs 1–8 dGH) — a compromise, not a perfect match.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Chili Rasbora in a shoal of 8+ or it gets stressed and nippy.
• Crimson Red Betta⚠️ With caution
  Peaceful · 3.5 cm · Hard care · 24–29 °C (75–84 °F)
  • pH preferences only just meet (Endler's Livebearer 7–8.5 vs Crimson Red Betta 4–6.5) — target the overlap and acclimate slowly.
  • One likes softer water and the other harder (10–25 vs 0–5 dGH) — a compromise, not a perfect match.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
• Crystal Red Shrimp⚠️ With caution
  Peaceful · 2.5 cm · Hard care · 20–24 °C (68–75 °F)
  • pH preferences only just meet (Endler's Livebearer 7–8.5 vs Crystal Red Shrimp 6–6.8) — target the overlap and acclimate slowly.
  • One likes softer water and the other harder (10–25 vs 2–5 dGH) — a compromise, not a perfect match.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Crystal Red Shrimp in a shoal of 10+ or it gets stressed and nippy.
• Exclamation Point Rasbora⚠️ With caution
  Peaceful · 2 cm · Medium care · 22–28 °C (72–82 °F)
  • Water hardness preferences differ (Endler's Livebearer 10–25 vs Exclamation Point Rasbora 1–8 dGH).
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Exclamation Point Rasbora in a shoal of 8+ or it gets stressed and nippy.
• Fire Red Licorice Gourami⚠️ With caution
  Peaceful · 3.5 cm · Hard care · 23–28 °C (73–82 °F)
  • pH preferences only just meet (Endler's Livebearer 7–8.5 vs Fire Red Licorice Gourami 4–6.5) — target the overlap and acclimate slowly.
  • One likes softer water and the other harder (10–25 vs 0–4 dGH) — a compromise, not a perfect match.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
• Green Neon Tetra⚠️ With caution
  Peaceful · 2.5 cm · Hard care · 24–28 °C (75–82 °F)
  • Different pH ranges (7–8.5 vs 4.5–6.5); doable if you sit in the shared band, but not ideal long-term.
  • Water hardness preferences differ (Endler's Livebearer 10–25 vs Green Neon Tetra 0–4 dGH).
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Green Neon Tetra in a shoal of 8+ or it gets stressed and nippy.
• Neon Blue Rasbora⚠️ With caution
  Peaceful · 2.5 cm · Medium care · 23–26 °C (73–79 °F)
  • pH preferences only just meet (Endler's Livebearer 7–8.5 vs Neon Blue Rasbora 4–6.5) — target the overlap and acclimate slowly.
  • One likes softer water and the other harder (10–25 vs 1–6 dGH) — a compromise, not a perfect match.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Neon Blue Rasbora in a shoal of 10+ or it gets stressed and nippy.
• Neon Green Rasbora⚠️ With caution
  Peaceful · 2 cm · Easy care · 22–26 °C (72–79 °F)
  • Water hardness preferences differ (Endler's Livebearer 10–25 vs Neon Green Rasbora 1–8 dGH).
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Neon Green Rasbora in a shoal of 10+ or it gets stressed and nippy.
• Purple Tetra⚠️ With caution
  Peaceful · 4 cm · Medium care · 22–26 °C (72–79 °F)
  • Different pH ranges (7–8.5 vs 5.8–6.8); doable if you sit in the shared band, but not ideal long-term.
  • Water hardness preferences differ (Endler's Livebearer 10–25 vs Purple Tetra 1–8 dGH).
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Purple Tetra 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)
  • Expect Rainbow Emperor Tetra to harass Endler's Livebearer at times; give dense cover and watch them at feeding.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Rainbow Emperor Tetra in a shoal of 8+ or it gets stressed and nippy.
• Serpae Tetra⚠️ With caution
  Semi-aggressive · 4 cm · Easy care · 23–28 °C (73–82 °F)
  • Expect Serpae Tetra to harass Endler's Livebearer at times; give dense cover and watch them at feeding.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Serpae Tetra in a shoal of 6+ or it gets stressed and nippy.
• Strawberry Betta⚠️ With caution
  Peaceful · 4 cm · Medium care · 22–27 °C (72–81 °F)
  • One likes softer water and the other harder (10–25 vs 0–8 dGH) — a compromise, not a perfect match.
  • Keep Endler's Livebearer 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)
  • Tiger Badis and Endler's Livebearer are close in size, but the semi-aggressive one tends to dominate — add endler's livebearer in a group to spread the pressure.
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
• Tiger Shrimp⚠️ With caution
  Peaceful · 3 cm · Hard care · 20–25 °C (68–77 °F)
  • Water hardness preferences differ (Endler's Livebearer 10–25 vs Tiger Shrimp 0–6 dGH).
  • Keep Endler's Livebearer in a shoal of 6+ or it gets stressed and nippy.
  • Keep Tiger Shrimp 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)
  • Endler's Livebearer is bite-sized to a 250 cm predatory alligator gar — it will be eaten.
  • Expect Alligator Gar to harass Endler's Livebearer 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 Endler's Livebearer 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)
  • Size gap is too large (90 vs 3 cm): Clown Knifefish will treat Endler's Livebearer as food.
  • Clown Knifefish is aggressive and may chase or nip the smaller Endler's Livebearer — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
  • Keep Endler's Livebearer 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)
  • Size gap is too large (100 vs 3 cm): Fire Eel will treat Endler's Livebearer as food.
  • Fire Eel is semi-aggressive and may chase or nip the smaller Endler's Livebearer — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
  • Keep Endler's Livebearer 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)
  • Endler's Livebearer is bite-sized to a 90 cm koi — it will be eaten.
  • Your 75 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
  • Keep Endler's Livebearer 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)
  • Redtail Catfish (120 cm) is big enough to swallow the 3 cm Endler's Livebearer whole.
  • Redtail Catfish clearly outsizes Endler's Livebearer and is aggressive; risky unless the tank is big and well-planted.
  • Your 75 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
  • Keep Endler's Livebearer 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 3 cm): Spotted Gar will treat Endler's Livebearer as food.
  • Expect Spotted Gar to harass Endler's Livebearer at times; give dense cover and watch them at feeding.
  • Your 75 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
  • Keep Endler's Livebearer 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)
  • Endler's Livebearer is bite-sized to a 300 cm predatory wels catfish — it will be eaten.
  • Expect Wels Catfish to harass Endler's Livebearer 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.
  • Keep Endler's Livebearer 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)
  • Wolf Cichlid (72 cm) is big enough to swallow the 3 cm Endler's Livebearer whole.
  • Wolf Cichlid is aggressive and may chase or nip the smaller Endler's Livebearer — plant heavily and break up sight lines.
  • Your 75 L tank is below the ~760 L this pairing really wants — crowding raises aggression.
  • Keep Endler's Livebearer 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.