Bristlenose Pleco Tank Mates

Bristlenose Pleco is peaceful, so its tank mates need choosing with care. Here are the 197 freshwater species that pair well with a bristlenose pleco — plus the 2 to avoid — with a live checker you can tune to your own tank.

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

The best tank mates for a bristlenose pleco

  • 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, and their water overlaps around 23–26 °C — no size, zone or temperament conflicts.
  • Ramshorn Snail ✅ Compatible
    Easy care · Peaceful · 2 cm · 20–28 °C (68–82 °F)
    Both are peaceful, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
  • Red Lip Nerite Snail ✅ Compatible
    Easy care · Peaceful · 2 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.
  • Dawn Tetra ✅ Compatible
    Easy care · Peaceful · 2.5 cm · 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.
  • Nerite Snail ✅ Compatible
    Easy care · Peaceful · 2.5 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
  • Assassin Snail ✅ Compatible
    Easy care · Peaceful · 3 cm · 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.
  • Cherry Shrimp ✅ Compatible
    Easy care · Peaceful · 3 cm · 18–28 °C (64–82 °F)
    Both are peaceful, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
  • Endler's Livebearer ✅ Compatible
    Easy care · Peaceful · 3 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
  • Glowlight Danio ✅ Compatible
    Easy care · Peaceful · 3 cm · 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.
  • Gold Ring Danio ✅ Compatible
    Easy care · Peaceful · 3 cm · 18–26 °C (64–79 °F)
    Both are peaceful, and their water overlaps around 23–26 °C — no size, zone or temperament conflicts.
  • 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)
    Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
  • 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)
    Compatible on the things that matter: shared water near 23–24 °C, workable temperaments, and no predator-and-prey size gap.
  • Pygmy Corydoras ✅ Compatible
    Easy care · Peaceful · 3.2 cm · 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.
  • Glowlight Rasbora ✅ Compatible
    Easy care · Peaceful · 3.5 cm · 23–28 °C (73–82 °F)
    Both are peaceful, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
  • Blue Danio ✅ Compatible
    Easy care · Peaceful · 4 cm · 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.
  • Emperor Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 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.
  • Flame Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
  • Ghost Shrimp ✅ Compatible
    Easy care · Peaceful · 4 cm · 18–28 °C (64–82 °F)
    Compatible on the things that matter: shared water near 23–28 °C, workable temperaments, and no predator-and-prey size gap.
  • Glowlight Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 22–28 °C (72–82 °F)
    Both are peaceful, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
  • Golden Dwarf Barb ✅ Compatible
    Easy care · Peaceful · 4 cm · 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.
  • Phoenix Tetra ✅ Compatible
    Easy care · Peaceful · 4 cm · 23–28 °C (73–82 °F)
    Both are peaceful, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
With caution

Bristlenose Pleco tank mates that can work with care

  • Afra Cichlid ⚠️ With caution
    Medium care · Semi-aggressive · 10 cm · 24–28 °C (75–82 °F)
    pH preferences only just meet (Bristlenose Pleco 6–7.5 vs Afra Cichlid 7.8–8.6) — target the overlap and acclimate slowly.
  • Alligator Gar ⚠️ With caution
    Hard care · Aggressive · 250 cm · 24–28 °C (75–82 °F)
    Alligator Gar may bully the smaller Bristlenose Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Altifrons Geophagus ⚠️ With caution
    Medium care · Semi-aggressive · 25 cm · 24–28 °C (75–82 °F)
    Your 95 L tank is below the ~378 L this pairing really wants — crowding raises aggression.
  • Amazon Puffer ⚠️ With caution
    Medium care · Peaceful · 8 cm · 23–28 °C (73–82 °F)
    Your 95 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)
    Your 95 L tank is below the ~110 L this pairing really wants — crowding raises aggression.
  • Angelicus Synodontis ⚠️ With caution
    Medium care · Semi-aggressive · 25 cm · 23–27 °C (73–81 °F)
    Your 95 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
  • Arrowhead Puffer ⚠️ With caution
    Hard care · Aggressive · 12 cm · 23–28 °C (73–82 °F)
    Your 95 L tank is below the ~132 L this pairing really wants — crowding raises aggression.
  • Auratus Cichlid ⚠️ With caution
    Medium care · Aggressive · 11 cm · 23–28 °C (73–82 °F)
    Different pH ranges (6–7.5 vs 7.6–8.8); doable if you sit in the shared band, but not ideal long-term.

+ 133 more “with caution” pairings — see the interactive checker above.

Avoid

Fish to avoid keeping with a bristlenose pleco

  • Imperial Flower Loach ⛔ Avoid
    Hard care · Semi-aggressive · 50 cm · 15–22 °C (59–72 °F)
    Temperature needs don't overlap (Bristlenose Pleco 23–30 °C vs Imperial Flower Loach 15–22 °C).
  • Goldfish ⛔ Avoid
    Medium care · Peaceful · 30 cm · 18–22 °C (64–72 °F)
    Temperature needs don't overlap (Bristlenose Pleco 23–30 °C vs Goldfish 18–22 °C).
Interactive tool

Check any fish against a bristlenose pleco

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

Tank-mate checker

Will it live with a Bristlenose Pleco?

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

  • 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.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Banded Gourami✅ Compatible
    Semi-aggressive · 12 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.
  • Banjo Catfish✅ Compatible
    Peaceful · 15 cm · Medium care · 20–26 °C (68–79 °F)
    • Both are peaceful, and their water overlaps around 23–26 °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.
  • 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.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
    • Keep Bearded Corydoras 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 23–28 °C, workable temperaments, and no predator-and-prey size gap.
    • 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)
    • Both are peaceful; 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)
    • Compatible on the things that matter: shared water near 24–30 °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.
  • Golden Wonder Killifish✅ Compatible
    Semi-aggressive · 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.
  • Keyhole Cichlid✅ Compatible
    Peaceful · 10 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.
  • Kribensis✅ Compatible
    Semi-aggressive · 10 cm · Easy care · 24–27 °C (75–81 °F)
    • Compatible on the things that matter: shared water near 24–27 °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.
  • Kuhli Loach✅ Compatible
    Peaceful · 10 cm · Easy care · 24–30 °C (75–86 °F)
    • Both are peaceful; 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.
  • Marbled Hoplo✅ Compatible
    Peaceful · 14 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 bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Molly✅ Compatible
    Peaceful · 10 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.
  • Murray River Rainbowfish✅ Compatible
    Peaceful · 11 cm · Easy care · 15–26 °C (59–79 °F)
    • Both are peaceful, and their water overlaps around 23–26 °C — no size, zone or temperament conflicts.
    • Keep Murray River Rainbowfish in a shoal of 6+ or it gets stressed and nippy.
  • Paradise Fish✅ Compatible
    Aggressive · 10 cm · Medium care · 16–26 °C (61–79 °F)
    • Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
  • Porthole Catfish✅ Compatible
    Peaceful · 10 cm · Easy care · 22–28 °C (72–82 °F)
    • Both are peaceful, and their water overlaps around 23–28 °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.
  • Rosy Barb✅ Compatible
    Semi-aggressive · 10 cm · Easy care · 18–26 °C (64–79 °F)
    • Compatible on the things that matter: shared water near 23–26 °C, workable temperaments, and no predator-and-prey size gap.
    • Keep Rosy 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)
    • Both are peaceful, and their water overlaps around 23–26 °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.
  • Striped Eel Loach✅ 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.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Swordtail✅ Compatible
    Semi-aggressive · 14 cm · Easy care · 22–28 °C (72–82 °F)
    • Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 23–28 °C — no size, zone or temperament conflicts.
  • Tiger Betta✅ Compatible
    Semi-aggressive · 11 cm · Hard care · 22–27 °C (72–81 °F)
    • Peaceful + Semi-aggressive, but with no direct clash here, and their water overlaps around 23–27 °C — no size, zone or temperament conflicts.
  • Topaz Cichlid✅ Compatible
    Semi-aggressive · 10 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.
  • Zebra Pleco✅ Compatible
    Peaceful · 10 cm · Hard care · 26–30 °C (79–86 °F)
    • Compatible on the things that matter: shared water near 26–30 °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.
  • Arrowhead Puffer⚠️ With caution
    Aggressive · 12 cm · Hard care · 23–28 °C (73–82 °F)
    • Your 95 L tank is below the ~132 L this pairing really wants — crowding raises aggression.
  • Auratus Cichlid⚠️ With caution
    Aggressive · 11 cm · Medium care · 23–28 °C (73–82 °F)
    • Different pH ranges (6–7.5 vs 7.6–8.8); doable if you sit in the shared band, but not ideal long-term.
    • Your 95 L tank is below the ~190 L this pairing really wants — crowding raises aggression.
    • Keep Auratus Cichlid in a shoal of 6+ or it gets stressed and nippy.
  • Blue Gourami⚠️ With caution
    Semi-aggressive · 13 cm · Easy care · 22–28 °C (72–82 °F)
    • Your 95 L tank is below the ~113 L this pairing really wants — crowding raises aggression.
  • Bucktooth Tetra⚠️ With caution
    Aggressive · 12 cm · Medium care · 23–28 °C (73–82 °F)
    • Your 95 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
    • 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)
    • Your 95 L tank is below the ~110 L this pairing really wants — crowding raises aggression.
  • Ice Blue Cichlid⚠️ With caution
    Aggressive · 12 cm · Medium care · 24–28 °C (75–82 °F)
    • pH preferences only just meet (Bristlenose Pleco 6–7.5 vs Ice Blue Cichlid 7.6–8.6) — target the overlap and acclimate slowly.
    • Your 95 L tank is below the ~190 L this pairing really wants — crowding raises aggression.
  • Mascara Barb⚠️ With caution
    Peaceful · 12 cm · Medium care · 20–25 °C (68–77 °F)
    • Your 95 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
    • 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 95 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
  • Pearl Gourami⚠️ With caution
    Peaceful · 12 cm · Medium care · 24–28 °C (75–82 °F)
    • Your 95 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
  • Pictus Catfish⚠️ With caution
    Semi-aggressive · 12 cm · Medium care · 22–27 °C (72–81 °F)
    • Your 95 L tank is below the ~210 L this pairing really wants — crowding raises aggression.
  • Polka-dot Loach⚠️ With caution
    Semi-aggressive · 13 cm · Medium care · 24–28 °C (75–82 °F)
    • Your 95 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
  • Powder Blue Cichlid⚠️ With caution
    Semi-aggressive · 12 cm · Medium care · 24–28 °C (75–82 °F)
    • Your 95 L tank is below the ~170 L this pairing really wants — crowding raises aggression.
    • Keep Powder Blue Cichlid in a shoal of 6+ or it gets stressed and nippy.
  • Red Zebra Cichlid⚠️ With caution
    Aggressive · 13 cm · Medium care · 23–28 °C (73–82 °F)
    • pH preferences only just meet (Bristlenose Pleco 6–7.5 vs Red Zebra Cichlid 7.6–8.6) — target the overlap and acclimate slowly.
    • Your 95 L tank is below the ~190 L this pairing really wants — crowding raises aggression.
    • Keep Red Zebra 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 95 L tank is below the ~115 L this pairing really wants — crowding raises aggression.
  • T-bar Cichlid⚠️ With caution
    Semi-aggressive · 12 cm · Medium care · 22–28 °C (72–82 °F)
    • Your 95 L tank is below the ~120 L this pairing really wants — crowding raises aggression.
  • White Spotted Cichlid⚠️ With caution
    Aggressive · 12 cm · Hard care · 24–28 °C (75–82 °F)
    • Different pH ranges (6–7.5 vs 7.8–9); doable if you sit in the shared band, but not ideal long-term.
    • Your 95 L tank is below the ~200 L this pairing really wants — crowding raises aggression.
    • Keep White Spotted Cichlid in a shoal of 8+ or it gets stressed and nippy.
  • Goldfish⛔ Not recommended
    Peaceful · 30 cm · Medium care · 18–22 °C (64–72 °F)
    • Temperature needs don't overlap (Bristlenose Pleco 23–30 °C vs Goldfish 18–22 °C).
    • Goldfish may bully the smaller Bristlenose Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
    • Your 95 L tank is below the ~150 L this pairing really wants — crowding raises aggression.
  • Imperial Flower Loach⛔ Not recommended
    Semi-aggressive · 50 cm · Hard care · 15–22 °C (59–72 °F)
    • Temperature needs don't overlap (Bristlenose Pleco 23–30 °C vs Imperial Flower Loach 15–22 °C).
    • Imperial Flower Loach may bully the smaller Bristlenose Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
    • Your 95 L tank is below the ~750 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 bristlenose pleco community tank

Give the group a stable, planted 95 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 bristlenose pleco

As a peaceful species, bristlenose pleco is easily bullied — favour other calm, non-nippy fish and steer clear of boisterous or aggressive tank mates. It mostly occupies the bottom of the tank, so it pairs naturally with species that use the other levels.

Bristlenose Pleco grows to about 12 cm, so avoid tank mates small enough to be seen as food — as a rule of thumb, skip anything under roughly 6 cm. Match its water, too: aim for 23–30 °C (73–86 °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.

Bristlenose Pleco 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 bristlenose pleco live with other fish?

Yes — with the right companions. Our checker finds 197 compatible freshwater species for bristlenose pleco. 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 bristlenose pleco?

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 bristlenose pleco?

Avoid Imperial Flower Loach, Goldfish and similar — usually a temperature, size or temperament clash. The full "avoid" list below gives the reason for each.

How big a tank do bristlenose pleco tank mates need?

Start from Bristlenose Pleco's own minimum and scale up with every addition. The checker above defaults to a 95 L community tank and flags pairings that need more room — drag the slider to match your setup.

← Back to the full Bristlenose Pleco care guide