Black Belt Cichlid Tank Mates

Black Belt Cichlid is aggressive, so its tank mates need choosing with care. Here are the 8 freshwater species that pair well with a black belt cichlid — plus the 266 to avoid — with a live checker you can tune to your own tank.

By The Aquarium DB Team • Updated June 8, 2026 • Full Black Belt Cichlid care guide →
Best matches

The best tank mates for a black belt cichlid

  • Spotted Talking Catfish ✅ Compatible
    Easy care · Peaceful · 15 cm · 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.
  • Weather Loach ✅ Compatible
    Easy care · Peaceful · 25 cm · 5–24 °C (41–75 °F)
    Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–24 °C — no size, zone or temperament conflicts.
  • Snowball Pleco ✅ Compatible
    Medium care · Peaceful · 16 cm · 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.
  • Clown Loach ✅ Compatible
    Medium care · Peaceful · 30 cm · 25–30 °C (77–86 °F)
    Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 25–30 °C — no size, zone or temperament conflicts.
  • Yellow-spotted Pleco ✅ Compatible
    Medium care · Peaceful · 35 cm · 24–27 °C (75–81 °F)
    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.
  • Common Pleco ✅ Compatible
    Medium care · Peaceful · 45 cm · 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.
  • Sailfin Pleco ✅ Compatible
    Medium care · Peaceful · 50 cm · 22–28 °C (72–82 °F)
    Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Elephant-nose Knifefish ✅ Compatible
    Hard care · Peaceful · 35 cm · 24–29 °C (75–84 °F)
    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.
With caution

Black Belt Cichlid tank mates that can work with care

  • Adolf's Cory ⚠️ With caution
    Medium care · Peaceful · 5.5 cm · 22–26 °C (72–79 °F)
    Black Belt Cichlid may bully the smaller Adolf's Cory, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Agassiz's Corydoras ⚠️ With caution
    Easy care · Peaceful · 6 cm · 22–28 °C (72–82 °F)
    Black Belt Cichlid may bully the smaller Agassiz's Corydoras, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Amano Shrimp ⚠️ With caution
    Easy care · Peaceful · 5 cm · 18–28 °C (64–82 °F)
    Adult Amano Shrimp might survive with Black Belt Cichlid, but expect the young to be eaten — plant heavily.
  • Assassin Snail ⚠️ With caution
    Easy care · Peaceful · 3 cm · 22–26 °C (72–79 °F)
    Black Belt Cichlid may bully the smaller Assassin Snail, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Axelrod's Cory ⚠️ With caution
    Easy care · Peaceful · 5 cm · 23–28 °C (73–82 °F)
    Black Belt Cichlid may bully the smaller Axelrod's Cory, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Bamboo Shrimp ⚠️ With caution
    Medium care · Peaceful · 8 cm · 22–27 °C (72–81 °F)
    Black Belt Cichlid clearly outsizes Bamboo Shrimp and is aggressive; risky unless the tank is big and well-planted.
  • Bandit Corydoras ⚠️ With caution
    Easy care · Peaceful · 5 cm · 22–27 °C (72–81 °F)
    Black Belt Cichlid may bully the smaller Bandit Corydoras, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Banjo Catfish ⚠️ With caution
    Medium care · Peaceful · 15 cm · 20–26 °C (68–79 °F)
    Black Belt Cichlid may hunt Banjo Catfish, fry or shrimplets — safest in a heavily planted tank.

+ 58 more “with caution” pairings — see the interactive checker above.

Avoid

Fish to avoid keeping with a black belt cichlid

  • Mekong Giant Catfish ⛔ Avoid
    Hard care · Semi-aggressive · 300 cm · 20–28 °C (68–82 °F)
    Black Belt Cichlid and Mekong Giant Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
  • Wels Catfish ⛔ Avoid
    Hard care · Aggressive · 300 cm · 15–25 °C (59–77 °F)
    Black Belt Cichlid and Wels Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
  • Alligator Gar ⛔ Avoid
    Hard care · Aggressive · 250 cm · 24–28 °C (75–82 °F)
    Black Belt Cichlid and Alligator Gar are both territorial and at least one is outright aggressive — expect serious fighting.
  • Redtail Catfish ⛔ Avoid
    Hard care · Aggressive · 120 cm · 24–27 °C (75–81 °F)
    Black Belt Cichlid and Redtail Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
  • Fire Eel ⛔ Avoid
    Medium care · Semi-aggressive · 100 cm · 24–28 °C (75–82 °F)
    Two assertive fish, one genuinely aggressive: Black Belt Cichlid and Fire Eel will hold territory and clash.
  • Clown Knifefish ⛔ Avoid
    Hard care · Aggressive · 90 cm · 24–28 °C (75–82 °F)
    Two assertive fish, one genuinely aggressive: Black Belt Cichlid and Clown Knifefish will hold territory and clash.
  • Spotted Gar ⛔ Avoid
    Hard care · Aggressive · 90 cm · 18–26 °C (64–79 °F)
    Black Belt Cichlid and Spotted Gar are both territorial and at least one is outright aggressive — expect serious fighting.
  • Wolf Cichlid ⛔ Avoid
    Hard care · Aggressive · 72 cm · 24–30 °C (75–86 °F)
    Two assertive fish, one genuinely aggressive: Black Belt Cichlid and Wolf Cichlid will hold territory and clash.

+ 258 more to avoid — the checker above flags every one.

Interactive tool

Check any fish against a black belt cichlid

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

Tank-mate checker

Will it live with a Black Belt Cichlid?

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

  • Clown Loach✅ Compatible
    Peaceful · 30 cm · Medium care · 25–30 °C (77–86 °F)
    • Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 25–30 °C — no size, zone or temperament conflicts.
  • Common Pleco✅ Compatible
    Peaceful · 45 cm · Medium 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.
  • Elephant-nose Knifefish✅ Compatible
    Peaceful · 35 cm · Hard care · 24–29 °C (75–84 °F)
    • 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.
  • Sailfin Pleco✅ Compatible
    Peaceful · 50 cm · Medium care · 22–28 °C (72–82 °F)
    • Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–28 °C — no size, zone or temperament conflicts.
  • Snowball Pleco✅ Compatible
    Peaceful · 16 cm · Medium 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.
  • Spotted Talking Catfish✅ Compatible
    Peaceful · 15 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.
  • Weather Loach✅ Compatible
    Peaceful · 25 cm · Easy care · 5–24 °C (41–75 °F)
    • Aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–24 °C — no size, zone or temperament conflicts.
  • Yellow-spotted Pleco✅ Compatible
    Peaceful · 35 cm · Medium care · 24–27 °C (75–81 °F)
    • 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.
  • Banjo Catfish⚠️ With caution
    Peaceful · 15 cm · Medium care · 20–26 °C (68–79 °F)
    • Black Belt Cichlid may hunt Banjo Catfish, fry or shrimplets — safest in a heavily planted tank.
  • Black Doras Catfish⚠️ With caution
    Peaceful · 60 cm · Hard care · 22–28 °C (72–82 °F)
    • Your 450 L tank is below the ~500 L this pairing really wants — crowding raises aggression.
  • Bristlenose Pleco⚠️ With caution
    Peaceful · 12 cm · Easy care · 23–30 °C (73–86 °F)
    • Black Belt Cichlid may bully the smaller Bristlenose Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Denison Barb⚠️ With caution
    Peaceful · 15 cm · Medium care · 18–25 °C (64–77 °F)
    • Black Belt Cichlid is aggressive and may chase or nip the smaller Denison Barb — plant heavily and break up sight lines.
    • Watch for Black Belt Cichlid picking off any denison barb small enough to fit in its mouth.
    • Keep Denison 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)
    • Expect Black Belt Cichlid to harass Discus at times; give dense cover and watch them at feeding.
    • Keep Discus in a shoal of 6+ or it gets stressed and nippy.
  • Giant Betta⚠️ With caution
    Peaceful · 12 cm · Medium care · 24–28 °C (75–82 °F)
    • Black Belt Cichlid is aggressive and may chase or nip the smaller Giant Betta — plant heavily and break up sight lines.
    • Watch for Black Belt Cichlid picking off any giant betta small enough to fit in its mouth.
  • Giant Glass Catfish⚠️ With caution
    Peaceful · 15 cm · Medium care · 22–27 °C (72–81 °F)
    • Black Belt Cichlid is aggressive and may chase or nip the smaller Giant Glass Catfish — plant heavily and break up sight lines.
  • Giant Kuhli Loach⚠️ With caution
    Peaceful · 12 cm · Easy care · 24–30 °C (75–86 °F)
    • Watch for Black Belt Cichlid picking off any giant kuhli loach small enough to fit in its mouth.
  • Koi⚠️ With caution
    Peaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
    • Watch for Koi picking off any black belt cichlid small enough to fit in its mouth.
    • Your 450 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
  • Marbled Hoplo⚠️ With caution
    Peaceful · 14 cm · Easy care · 22–28 °C (72–82 °F)
    • Black Belt Cichlid may bully the smaller Marbled Hoplo, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Mascara Barb⚠️ With caution
    Peaceful · 12 cm · Medium care · 20–25 °C (68–77 °F)
    • Black Belt Cichlid clearly outsizes Mascara Barb and is aggressive; risky unless the tank is big and well-planted.
    • Mascara Barb is small enough to tempt Black Belt Cichlid; only risk it in a densely planted setup with hiding spots.
    • 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)
    • Black Belt Cichlid may bully the smaller Medusa Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Moonlight Gourami⚠️ With caution
    Peaceful · 15 cm · Easy care · 25–30 °C (77–86 °F)
    • Black Belt Cichlid clearly outsizes Moonlight Gourami and is aggressive; risky unless the tank is big and well-planted.
    • Black Belt Cichlid may hunt Moonlight Gourami, fry or shrimplets — safest in a heavily planted tank.
  • Pearl Gourami⚠️ With caution
    Peaceful · 12 cm · Medium care · 24–28 °C (75–82 °F)
    • Black Belt Cichlid is aggressive and may chase or nip the smaller Pearl Gourami — plant heavily and break up sight lines.
    • Pearl Gourami is small enough to tempt Black Belt Cichlid; only risk it in a densely planted setup with hiding spots.
  • Rubber Lip Pleco⚠️ With caution
    Peaceful · 12 cm · Easy care · 20–26 °C (68–79 °F)
    • Black Belt Cichlid may bully the smaller Rubber Lip Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Spotted Rubbernose Pleco⚠️ With caution
    Peaceful · 12 cm · Medium care · 20–26 °C (68–79 °F)
    • Black Belt Cichlid may bully the smaller Spotted Rubbernose Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Alligator Gar⛔ Not recommended
    Aggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
    • Black Belt Cichlid and Alligator Gar are both territorial and at least one is outright aggressive — expect serious fighting.
    • Size gap is too large (250 vs 35 cm): Alligator Gar will treat Black Belt Cichlid as food.
    • Your 450 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: Black Belt Cichlid and Clown Knifefish will hold territory and clash.
    • Clown Knifefish (90 cm) is big enough to swallow the 35 cm Black Belt Cichlid whole.
    • Your 450 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)
    • Two assertive fish, one genuinely aggressive: Black Belt Cichlid and Fire Eel will hold territory and clash.
    • Black Belt Cichlid is bite-sized to a 100 cm predatory fire eel — it will be eaten.
  • Mekong Giant Catfish⛔ Not recommended
    Semi-aggressive · 300 cm · Hard care · 20–28 °C (68–82 °F)
    • Black Belt Cichlid and Mekong Giant Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
    • Your 450 L tank is below the ~100000 L this pairing really wants — crowding raises aggression.
  • Redtail Catfish⛔ Not recommended
    Aggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
    • Black Belt Cichlid and Redtail Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
    • Size gap is too large (120 vs 35 cm): Redtail Catfish will treat Black Belt Cichlid as food.
    • Your 450 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)
    • Black Belt Cichlid and Spotted Gar are both territorial and at least one is outright aggressive — expect serious fighting.
    • Black Belt Cichlid is bite-sized to a 90 cm predatory spotted gar — it will be eaten.
    • Your 450 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)
    • Black Belt Cichlid and Wels Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
    • Black Belt Cichlid is bite-sized to a 300 cm predatory wels catfish — it will be eaten.
    • Your 450 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: Black Belt Cichlid and Wolf Cichlid will hold territory and clash.
    • Watch for Wolf Cichlid picking off any black belt cichlid small enough to fit in its mouth.
    • Your 450 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.

Setting up a black belt cichlid community tank

Give the group a stable, planted 450 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 black belt cichlid

Black Belt Cichlid is aggressive and territorial, so most community fish are unsafe; any tank mate must be large, tough and able to hold its own. It mostly occupies the middle of the tank, so it pairs naturally with species that use the other levels.

Black Belt Cichlid grows to about 35 cm, so avoid tank mates small enough to be seen as food — as a rule of thumb, skip anything under roughly 18 cm. Match its water, too: aim for 24–30 °C (75–86 °F), pH 7–8.2 and 8–20 dGH. Fish needing very different conditions — coldwater species, or hard-water lovers against a soft-water fish — rarely thrive side by side.

Black Belt Cichlid 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 black belt cichlid live with other fish?

Yes — with the right companions. Our checker finds 8 compatible freshwater species for black belt cichlid. 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 black belt cichlid?

Easy, peaceful, similarly-sized species top the list — for example Spotted Talking Catfish, Weather Loach, Snowball Pleco. Use the checker above to match against your own tank size.

What fish should you avoid keeping with a black belt cichlid?

Avoid Mekong Giant Catfish, Wels Catfish, Alligator Gar and similar — usually a temperature, size or temperament clash. The full "avoid" list below gives the reason for each.

How big a tank do black belt cichlid tank mates need?

Start from Black Belt Cichlid's own minimum and scale up with every addition. The checker above defaults to a 450 L community tank and flags pairings that need more room — drag the slider to match your setup.

← Back to the full Black Belt Cichlid care guide