Regal Angelfish Tank Mates

Regal Angelfish is semi-aggressive, so its tank mates need choosing with care. Here are the 28 freshwater species that pair well with a regal angelfish — plus the 2 to avoid — with a live checker you can tune to your own tank.

By The Aquarium DB Team • Updated June 10, 2026 • Full Regal Angelfish care guide →
Best matches

The best tank mates for a regal angelfish

  • Clown Goby ✅ Compatible
    Easy care · Peaceful · 4 cm · 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.
  • Neon Goby ✅ Compatible
    Easy care · Peaceful · 5 cm · 24–27 °C (75–81 °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.
  • Banggai Cardinalfish ✅ Compatible
    Easy care · Peaceful · 8 cm · 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.
  • Blue Damselfish ✅ Compatible
    Easy care · Semi-aggressive · 8 cm · 24–27 °C (75–81 °F)
    Semi-aggressive + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
  • Firefish ✅ Compatible
    Easy care · Peaceful · 8 cm · 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.
  • Green Chromis ✅ Compatible
    Easy care · Peaceful · 8 cm · 24–27 °C (75–81 °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.
  • Ocellaris Clownfish ✅ Compatible
    Easy care · Semi-aggressive · 8 cm · 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.
  • Percula Clownfish ✅ Compatible
    Easy care · Semi-aggressive · 8 cm · 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.
  • Royal Gramma ✅ Compatible
    Easy care · Peaceful · 8 cm · 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.
  • Six Line Wrasse ✅ Compatible
    Easy care · Semi-aggressive · 8 cm · 24–27 °C (75–81 °F)
    Semi-aggressive + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
  • Yellow Watchman Goby ✅ Compatible
    Easy care · Peaceful · 9 cm · 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.
  • Bicolor Blenny ✅ Compatible
    Easy care · Semi-aggressive · 10 cm · 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.
  • Coral Beauty Angelfish ✅ Compatible
    Easy care · Semi-aggressive · 10 cm · 24–27 °C (75–81 °F)
    Semi-aggressive + 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.
  • Yellow Coris Wrasse ✅ Compatible
    Easy care · Peaceful · 12 cm · 24–27 °C (75–81 °F)
    Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
  • Lawnmower Blenny ✅ Compatible
    Easy care · Peaceful · 13 cm · 24–27 °C (75–81 °F)
    Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
  • Clarkii Clownfish ✅ Compatible
    Easy care · Semi-aggressive · 14 cm · 24–27 °C (75–81 °F)
    Semi-aggressive + 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.
  • Tomato Clownfish ✅ Compatible
    Easy care · Semi-aggressive · 14 cm · 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.
  • Flame Angelfish ✅ Compatible
    Medium care · Semi-aggressive · 10 cm · 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.
  • Melanurus Wrasse ✅ Compatible
    Medium care · Semi-aggressive · 12 cm · 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.
  • Bicolor Angelfish ✅ Compatible
    Medium care · Semi-aggressive · 15 cm · 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.
  • Diamond Goby ✅ Compatible
    Medium care · Peaceful · 15 cm · 24–27 °C (75–81 °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.
  • Kole Tang ✅ Compatible
    Medium care · Semi-aggressive · 18 cm · 24–27 °C (75–81 °F)
    Semi-aggressive + 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.
  • Yellow Tang ✅ Compatible
    Medium care · Semi-aggressive · 20 cm · 24–27 °C (75–81 °F)
    Semi-aggressive + 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.
  • Foxface Rabbitfish ✅ Compatible
    Medium care · Semi-aggressive · 24 cm · 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.
With caution

Regal Angelfish tank mates that can work with care

  • Emperor Angelfish ⚠️ With caution
    Hard care · Semi-aggressive · 38 cm · 24–27 °C (75–81 °F)
    Two large angel (Regal Angelfish + Emperor Angelfish) will likely battle over territory — keep one per tank, or only in a large system with both added together.
  • Naso Tang ⚠️ With caution
    Hard care · Semi-aggressive · 45 cm · 24–27 °C (75–81 °F)
    Your 480 L tank is below the ~680 L this pairing really wants — crowding raises aggression.
  • Queen Angelfish ⚠️ With caution
    Hard care · Semi-aggressive · 45 cm · 24–27 °C (75–81 °F)
    Two large angel (Regal Angelfish + Queen Angelfish) will likely battle over territory — keep one per tank, or only in a large system with both added together.
  • Sailfin Tang ⚠️ With caution
    Medium care · Semi-aggressive · 40 cm · 24–27 °C (75–81 °F)
    Your 480 L tank is below the ~570 L this pairing really wants — crowding raises aggression.
Avoid

Fish to avoid keeping with a regal angelfish

  • Maroon Clownfish ⛔ Avoid
    Medium care · Aggressive · 15 cm · 24–27 °C (75–81 °F)
    Two assertive fish, one genuinely aggressive: Regal Angelfish and Maroon Clownfish will hold territory and clash.
  • Domino Damselfish ⛔ Avoid
    Easy care · Aggressive · 14 cm · 24–27 °C (75–81 °F)
    Regal Angelfish and Domino Damselfish are both territorial and at least one is outright aggressive — expect serious fighting.
Interactive tool

Check any fish against a regal angelfish

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

Tank-mate checker

Will it live with a Regal Angelfish?

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

  • Banggai Cardinalfish✅ Compatible
    Peaceful · 8 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.
  • Bicolor Angelfish✅ Compatible
    Semi-aggressive · 15 cm · Medium 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.
  • Bicolor Blenny✅ 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.
  • Blue Damselfish✅ Compatible
    Semi-aggressive · 8 cm · Easy care · 24–27 °C (75–81 °F)
    • Semi-aggressive + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
  • Blue Tang✅ Compatible
    Semi-aggressive · 30 cm · Medium 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.
  • Clarkii Clownfish✅ Compatible
    Semi-aggressive · 14 cm · Easy care · 24–27 °C (75–81 °F)
    • Semi-aggressive + 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.
  • Cleaner Wrasse✅ Compatible
    Peaceful · 11 cm · Hard 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.
  • Coral Beauty Angelfish✅ Compatible
    Semi-aggressive · 10 cm · Easy care · 24–27 °C (75–81 °F)
    • Semi-aggressive + 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.
  • Diamond Goby✅ Compatible
    Peaceful · 15 cm · Medium care · 24–27 °C (75–81 °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.
  • Firefish✅ Compatible
    Peaceful · 8 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.
  • Flame Angelfish✅ Compatible
    Semi-aggressive · 10 cm · Medium 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.
  • Foxface Rabbitfish✅ Compatible
    Semi-aggressive · 24 cm · Medium 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.
  • Green Chromis✅ Compatible
    Peaceful · 8 cm · Easy care · 24–27 °C (75–81 °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 Green Chromis in a shoal of 6+ or it gets stressed and nippy.
  • Kole Tang✅ Compatible
    Semi-aggressive · 18 cm · Medium care · 24–27 °C (75–81 °F)
    • Semi-aggressive + 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.
  • Lawnmower Blenny✅ Compatible
    Peaceful · 13 cm · Easy care · 24–27 °C (75–81 °F)
    • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
  • Mandarin Dragonet✅ Compatible
    Peaceful · 8 cm · Hard care · 24–27 °C (75–81 °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.
  • Melanurus Wrasse✅ Compatible
    Semi-aggressive · 12 cm · Medium 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.
  • Ocellaris Clownfish✅ Compatible
    Semi-aggressive · 8 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.
  • Percula Clownfish✅ Compatible
    Semi-aggressive · 8 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.
  • Purple Tang✅ Compatible
    Semi-aggressive · 25 cm · Medium care · 24–27 °C (75–81 °F)
    • Semi-aggressive + Semi-aggressive, but with no direct clash here, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
  • Tomato Clownfish✅ Compatible
    Semi-aggressive · 14 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.
  • Yellow Coris Wrasse✅ Compatible
    Peaceful · 12 cm · Easy care · 24–27 °C (75–81 °F)
    • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 24–27 °C — no size, zone or temperament conflicts.
  • Yellow Tang✅ Compatible
    Semi-aggressive · 20 cm · Medium care · 24–27 °C (75–81 °F)
    • Semi-aggressive + 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.
  • Yellow Watchman Goby✅ Compatible
    Peaceful · 9 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.
  • Emperor Angelfish⚠️ With caution
    Semi-aggressive · 38 cm · Hard care · 24–27 °C (75–81 °F)
    • Two large angel (Regal Angelfish + Emperor Angelfish) will likely battle over territory — keep one per tank, or only in a large system with both added together.
    • Your 480 L tank is below the ~850 L this pairing really wants — crowding raises aggression.
  • Naso Tang⚠️ With caution
    Semi-aggressive · 45 cm · Hard care · 24–27 °C (75–81 °F)
    • Your 480 L tank is below the ~680 L this pairing really wants — crowding raises aggression.
  • Queen Angelfish⚠️ With caution
    Semi-aggressive · 45 cm · Hard care · 24–27 °C (75–81 °F)
    • Two large angel (Regal Angelfish + Queen Angelfish) will likely battle over territory — keep one per tank, or only in a large system with both added together.
    • Your 480 L tank is below the ~850 L this pairing really wants — crowding raises aggression.
  • Sailfin Tang⚠️ With caution
    Semi-aggressive · 40 cm · Medium care · 24–27 °C (75–81 °F)
    • Your 480 L tank is below the ~570 L this pairing really wants — crowding raises aggression.
  • Domino Damselfish⛔ Not recommended
    Aggressive · 14 cm · Easy care · 24–27 °C (75–81 °F)
    • Regal Angelfish and Domino Damselfish are both territorial and at least one is outright aggressive — expect serious fighting.
  • Maroon Clownfish⛔ Not recommended
    Aggressive · 15 cm · Medium care · 24–27 °C (75–81 °F)
    • Two assertive fish, one genuinely aggressive: Regal Angelfish and Maroon Clownfish will hold territory and clash.

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 regal angelfish community tank

Give the group a stable, planted 480 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 regal angelfish

Being semi-aggressive, regal angelfish can nip or harass smaller, slower or long-finned fish — give it space, broken sight-lines and similarly robust companions. It ranges across the whole water column, so tank mates that keep to one level help reduce friction.

Regal Angelfish grows to about 25 cm, so avoid tank mates small enough to be seen as food — as a rule of thumb, skip anything under roughly 13 cm. Match its water, too: aim for 24–27 °C (75–81 °F), pH 8–8.4 and 8–12 dGH. Fish needing very different conditions — coldwater species, or hard-water lovers against a soft-water fish — rarely thrive side by side.

Regal Angelfish 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 regal angelfish live with other fish?

Yes — with the right companions. Our checker finds 28 compatible freshwater species for regal angelfish. 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 regal angelfish?

Easy, peaceful, similarly-sized species top the list — for example Clown Goby, Neon Goby, Banggai Cardinalfish. Use the checker above to match against your own tank size.

What fish should you avoid keeping with a regal angelfish?

Avoid Maroon Clownfish, Domino Damselfish and similar — usually a temperature, size or temperament clash. The full "avoid" list below gives the reason for each.

How big a tank do regal angelfish tank mates need?

Start from Regal Angelfish's own minimum and scale up with every addition. The checker above defaults to a 480 L community tank and flags pairings that need more room — drag the slider to match your setup.

← Back to the full Regal Angelfish care guide