Spanner Barb Tank Mates

• Banjo Catfish✅ Compatible
  Peaceful · 15 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.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Bearded Corydoras✅ Compatible
  Peaceful · 10 cm · Medium care · 18–24 °C (64–75 °F)
  • Compatible on the things that matter: shared water near 23–24 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
  • Keep Bearded Corydoras in a shoal of 6+ or it gets stressed and nippy.
• Bristlenose Pleco✅ Compatible
  Peaceful · 12 cm · Easy care · 23–30 °C (73–86 °F)
  • Compatible on the things that matter: shared water near 23–29 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Clown Pleco✅ Compatible
  Peaceful · 9 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.
  • Keep Spanner Barb 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)
  • 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 Spanner Barb 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)
  • Compatible on the things that matter: shared water near 25–29 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Marbled Hoplo✅ Compatible
  Peaceful · 14 cm · Easy care · 22–28 °C (72–82 °F)
  • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Medusa Pleco✅ Compatible
  Peaceful · 12 cm · Medium care · 26–30 °C (79–86 °F)
  • Compatible on the things that matter: shared water near 26–29 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Pantanal Corydoras✅ Compatible
  Peaceful · 8 cm · Medium care · 22–27 °C (72–81 °F)
  • Compatible on the things that matter: shared water near 23–27 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
  • Keep Pantanal Corydoras in a shoal of 6+ or it gets stressed and nippy.
• Porthole Catfish✅ Compatible
  Peaceful · 10 cm · Easy care · 22–28 °C (72–82 °F)
  • Compatible on the things that matter: shared water near 23–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Rubber Lip Pleco✅ Compatible
  Peaceful · 12 cm · Easy care · 20–26 °C (68–79 °F)
  • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 23–26 °C — no size, zone or temperament conflicts.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Snowball Pleco✅ Compatible
  Peaceful · 16 cm · Medium care · 24–30 °C (75–86 °F)
  • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–29 °C — no size, zone or temperament conflicts.
  • Keep Spanner Barb 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 23–26 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Spotted Talking Catfish✅ Compatible
  Peaceful · 15 cm · Easy care · 22–26 °C (72–79 °F)
  • Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Striped Eel Loach✅ Compatible
  Peaceful · 12 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.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Upside-down Catfish✅ Compatible
  Peaceful · 10 cm · Easy care · 22–26 °C (72–79 °F)
  • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 23–26 °C — no size, zone or temperament conflicts.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Weather Loach✅ Compatible
  Peaceful · 25 cm · Easy care · 5–24 °C (41–75 °F)
  • Compatible on the things that matter: shared water near 23–24 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Zebra Pleco✅ Compatible
  Peaceful · 10 cm · Hard care · 26–30 °C (79–86 °F)
  • Compatible on the things that matter: shared water near 26–29 °C, workable temperaments, and no predator-and-prey size gap.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Angelfish⚠️ With caution
  Semi-aggressive · 15 cm · Medium care · 24–30 °C (75–86 °F)
  • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Blood Parrot Cichlid⚠️ With caution
  Semi-aggressive · 20 cm · Medium care · 24–28 °C (75–82 °F)
  • Spanner Barb and Blood Parrot Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
  • Blood Parrot Cichlid is slow and long-finned; a busy spanner barb shoal tends to nip at it. Keep spanner barb in a proper group of 6+ and watch them closely.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Blue Flash Cichlid⚠️ With caution
  Semi-aggressive · 15 cm · Medium care · 24–28 °C (75–82 °F)
  • Spanner Barb and Blue Flash Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
  • Your 208 L tank is below the ~210 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Clown Barb⚠️ With caution
  Semi-aggressive · 15 cm · Medium care · 24–30 °C (75–86 °F)
  • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
  • Keep Clown Barb in a shoal of 6+ or it gets stressed and nippy.
• Discus⚠️ With caution
  Peaceful · 20 cm · Hard care · 28–31 °C (82–88 °F)
  • Spanner Barb is a notorious fin-nipper — even though Discus is larger, an active shoal will harass its trailing fins. Only safe in a full group of 6+ with plenty of cover.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
  • Keep Discus in a shoal of 6+ or it gets stressed and nippy.
• Electric Blue Acara⚠️ With caution
  Semi-aggressive · 16 cm · Medium care · 22–28 °C (72–82 °F)
  • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Electric Blue Hap⚠️ With caution
  Semi-aggressive · 20 cm · Medium care · 24–28 °C (75–82 °F)
  • pH preferences only just meet (Spanner Barb 6–7.2 vs Electric Blue Hap 7.8–8.5) — target the overlap and acclimate slowly.
  • Spanner Barb and Electric Blue Hap can both be territorial; doable with space and dense planting, but watch for chasing.
  • Electric Blue Hap is slow and long-finned; a busy spanner barb shoal tends to nip at it. Keep spanner barb in a proper group of 6+ and watch them closely.
  • Your 208 L tank is below the ~250 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Emperor Peacock Cichlid⚠️ With caution
  Semi-aggressive · 16 cm · Medium care · 24–28 °C (75–82 °F)
  • pH preferences only just meet (Spanner Barb 6–7.2 vs Emperor Peacock Cichlid 7.6–8.6) — target the overlap and acclimate slowly.
  • Spanner Barb and Emperor Peacock Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
  • Your 208 L tank is below the ~210 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Fire Blue Empress Cichlid⚠️ With caution
  Semi-aggressive · 18 cm · Medium care · 24–28 °C (75–82 °F)
  • pH preferences only just meet (Spanner Barb 6–7.2 vs Fire Blue Empress Cichlid 7.5–8.5) — target the overlap and acclimate slowly.
  • Spanner Barb and Fire Blue Empress Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
  • Your 208 L tank is below the ~400 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Goldie Pleco⚠️ With caution
  Semi-aggressive · 20 cm · Medium care · 24–29 °C (75–84 °F)
  • Spanner Barb and Goldie Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Green Severum⚠️ With caution
  Semi-aggressive · 20 cm · Medium care · 23–29 °C (73–84 °F)
  • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Spanner Barb is a notorious fin-nipper — even though Green Severum is larger, an active shoal will harass its trailing fins. Only safe in a full group of 6+ with plenty of cover.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Guyana Flag Cichlid⚠️ With caution
  Semi-aggressive · 18 cm · Medium care · 24–30 °C (75–86 °F)
  • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Honeycomb Pleco⚠️ With caution
  Semi-aggressive · 21 cm · Medium care · 24–29 °C (75–84 °F)
  • Spanner Barb and Honeycomb Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
  • Your 208 L tank is below the ~280 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Platinum Acara⚠️ With caution
  Semi-aggressive · 20 cm · Medium care · 23–28 °C (73–82 °F)
  • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Spanner Barb is a notorious fin-nipper — even though Platinum Acara is larger, an active shoal will harass its trailing fins. Only safe in a full group of 6+ with plenty of cover.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Striped Raphael Catfish⚠️ With caution
  Semi-aggressive · 20 cm · Medium care · 24–28 °C (75–82 °F)
  • Spanner Barb and Striped Raphael Catfish can both be territorial; doable with space and dense planting, but watch for chasing.
  • Keep Spanner Barb in a shoal of 6+ or it gets stressed and nippy.
• Tiger Loach⚠️ With caution
  Semi-aggressive · 20 cm · Medium care · 23–27 °C (73–81 °F)
  • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Keep Spanner Barb 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)
  • Two assertive fish, one genuinely aggressive: Spanner Barb and Alligator Gar will hold territory and clash.
  • Alligator Gar (250 cm) is big enough to swallow the 18 cm Spanner Barb whole.
  • Alligator Gar is slow and long-finned; a busy spanner barb shoal tends to nip at it. Keep spanner barb in a proper group of 6+ and watch them closely.
  • Your 208 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb 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)
  • Spanner Barb and Clown Knifefish are both territorial and at least one is outright aggressive — expect serious fighting.
  • Spanner Barb is bite-sized to a 90 cm predatory clown knifefish — it will be eaten.
  • Your 208 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb 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 18 cm Spanner Barb whole.
  • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Your 208 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb 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)
  • Koi (90 cm) is big enough to swallow the 18 cm Spanner Barb whole.
  • Spanner Barb is a notorious fin-nipper — even though Koi is larger, an active shoal will harass its trailing fins. Only safe in a full group of 6+ with plenty of cover.
  • Your 208 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb 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)
  • Two assertive fish, one genuinely aggressive: Spanner Barb and Redtail Catfish will hold territory and clash.
  • Redtail Catfish (120 cm) is big enough to swallow the 18 cm Spanner Barb whole.
  • Your 208 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb 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)
  • Two assertive fish, one genuinely aggressive: Spanner Barb and Spotted Gar will hold territory and clash.
  • Size gap is too large (90 vs 18 cm): Spotted Gar will treat Spanner Barb as food.
  • Spotted Gar is slow and long-finned; a busy spanner barb shoal tends to nip at it. Keep spanner barb in a proper group of 6+ and watch them closely.
  • Your 208 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb 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)
  • Two assertive fish, one genuinely aggressive: Spanner Barb and Wels Catfish will hold territory and clash.
  • Size gap is too large (300 vs 18 cm): Wels Catfish will treat Spanner Barb as food.
  • Your 208 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb 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)
  • Spanner Barb and Wolf Cichlid are both territorial and at least one is outright aggressive — expect serious fighting.
  • Size gap is too large (72 vs 18 cm): Wolf Cichlid will treat Spanner Barb as food.
  • Spanner Barb is a notorious fin-nipper — even though Wolf Cichlid is larger, an active shoal will harass its trailing fins. Only safe in a full group of 6+ with plenty of cover.
  • Your 208 L tank is below the ~760 L this pairing really wants — crowding raises aggression.
  • Keep Spanner Barb 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.