Sunshine Pleco Tank Mates

Sunshine Pleco is semi-aggressive, so its tank mates need choosing with care. Here are the 9 freshwater species that pair well with a sunshine pleco — plus the 220 to avoid — with a live checker you can tune to your own tank.

By The Aquarium DB Team • Updated June 8, 2026 • Full Sunshine Pleco care guide →
Best matches

The best tank mates for a sunshine pleco

  • Marbled Hoplo ✅ Compatible
    Easy care · Peaceful · 14 cm · 22–28 °C (72–82 °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.
  • Spotted Talking Catfish ✅ Compatible
    Easy care · Peaceful · 15 cm · 22–26 °C (72–79 °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.
  • Weather Loach ✅ Compatible
    Easy care · Peaceful · 25 cm · 5–24 °C (41–75 °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.
  • Snowball Pleco ✅ Compatible
    Medium care · Peaceful · 16 cm · 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.
  • Clown Loach ✅ Compatible
    Medium care · Peaceful · 30 cm · 25–30 °C (77–86 °F)
    Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 25–29 °C — no size, zone or temperament conflicts.
  • Yellow-spotted Pleco ✅ Compatible
    Medium care · Peaceful · 35 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.
  • Common Pleco ✅ Compatible
    Medium care · Peaceful · 45 cm · 22–28 °C (72–82 °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.
  • Sailfin Pleco ✅ Compatible
    Medium care · Peaceful · 50 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.
  • Elephant-nose Knifefish ✅ Compatible
    Hard care · Peaceful · 35 cm · 24–29 °C (75–84 °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.
With caution

Sunshine Pleco tank mates that can work with care

  • Adolf's Cory ⚠️ With caution
    Medium care · Peaceful · 5.5 cm · 22–26 °C (72–79 °F)
    Sunshine Pleco 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)
    Sunshine Pleco may bully the smaller Agassiz's Corydoras, 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)
    Sunshine Pleco and Altifrons Geophagus can both be territorial; doable with space and dense planting, but watch for chasing.
  • Angelfish ⚠️ With caution
    Medium care · Semi-aggressive · 15 cm · 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.
  • Angelicus Synodontis ⚠️ With caution
    Medium care · Semi-aggressive · 25 cm · 23–27 °C (73–81 °F)
    Sunshine Pleco and Angelicus Synodontis can both be territorial; doable with space and dense planting, but watch for chasing.
  • Assassin Snail ⚠️ With caution
    Easy care · Peaceful · 3 cm · 22–26 °C (72–79 °F)
    Sunshine Pleco 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)
    Sunshine Pleco may bully the smaller Axelrod's Cory, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
  • Bandit Corydoras ⚠️ With caution
    Easy care · Peaceful · 5 cm · 22–27 °C (72–81 °F)
    Sunshine Pleco may bully the smaller Bandit Corydoras, though its armour makes it a hard meal — give it caves and driftwood to retreat into.

+ 103 more “with caution” pairings — see the interactive checker above.

Avoid

Fish to avoid keeping with a sunshine pleco

  • Wels Catfish ⛔ Avoid
    Hard care · Aggressive · 300 cm · 15–25 °C (59–77 °F)
    Two assertive fish, one genuinely aggressive: Sunshine Pleco and Wels Catfish will hold territory and clash.
  • Alligator Gar ⛔ Avoid
    Hard care · Aggressive · 250 cm · 24–28 °C (75–82 °F)
    Two assertive fish, one genuinely aggressive: Sunshine Pleco and Alligator Gar will hold territory and clash.
  • Redtail Catfish ⛔ Avoid
    Hard care · Aggressive · 120 cm · 24–27 °C (75–81 °F)
    Two assertive fish, one genuinely aggressive: Sunshine Pleco and Redtail Catfish will hold territory and clash.
  • Clown Knifefish ⛔ Avoid
    Hard care · Aggressive · 90 cm · 24–28 °C (75–82 °F)
    Sunshine Pleco and Clown Knifefish are both territorial and at least one is outright aggressive — expect serious fighting.
  • Spotted Gar ⛔ Avoid
    Hard care · Aggressive · 90 cm · 18–26 °C (64–79 °F)
    Two assertive fish, one genuinely aggressive: Sunshine Pleco and Spotted Gar will hold territory and clash.
  • Wolf Cichlid ⛔ Avoid
    Hard care · Aggressive · 72 cm · 24–30 °C (75–86 °F)
    Sunshine Pleco and Wolf Cichlid are both territorial and at least one is outright aggressive — expect serious fighting.
  • Ocellaris Peacock Bass ⛔ Avoid
    Hard care · Aggressive · 70 cm · 24–30 °C (75–86 °F)
    Sunshine Pleco and Ocellaris Peacock Bass are both territorial and at least one is outright aggressive — expect serious fighting.
  • Mbu Puffer ⛔ Avoid
    Hard care · Aggressive · 67 cm · 24–28 °C (75–82 °F)
    Sunshine Pleco and Mbu Puffer are both territorial and at least one is outright aggressive — expect serious fighting.

+ 212 more to avoid — the checker above flags every one.

Interactive tool

Check any fish against a sunshine pleco

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

Tank-mate checker

Will it live with a Sunshine Pleco?

We compare each fish against your sunshine pleco 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)
    • Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 25–29 °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.
  • Common Pleco✅ Compatible
    Peaceful · 45 cm · Medium care · 22–28 °C (72–82 °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.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Elephant-nose Knifefish✅ Compatible
    Peaceful · 35 cm · Hard care · 24–29 °C (75–84 °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.
    • 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)
    • 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.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Sailfin Pleco✅ Compatible
    Peaceful · 50 cm · Medium 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.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Snowball Pleco✅ Compatible
    Peaceful · 16 cm · Medium 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.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Spotted Talking Catfish✅ Compatible
    Peaceful · 15 cm · Easy care · 22–26 °C (72–79 °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.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Weather Loach✅ Compatible
    Peaceful · 25 cm · Easy care · 5–24 °C (41–75 °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.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Yellow-spotted Pleco✅ Compatible
    Peaceful · 35 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.
    • Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
  • Altifrons Geophagus⚠️ With caution
    Semi-aggressive · 25 cm · Medium care · 24–28 °C (75–82 °F)
    • Sunshine Pleco and Altifrons Geophagus can both be territorial; doable with space and dense planting, but watch for chasing.
    • Keep Altifrons Geophagus in a shoal of 6+ or it gets stressed and nippy.
  • Angelicus Synodontis⚠️ With caution
    Semi-aggressive · 25 cm · Medium care · 23–27 °C (73–81 °F)
    • Sunshine Pleco and Angelicus Synodontis can both be territorial; doable with space and dense planting, but watch for chasing.
  • Black Collared Catfish⚠️ With caution
    Semi-aggressive · 27 cm · Hard care · 23–25 °C (73–77 °F)
    • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Galaxy Pleco⚠️ With caution
    Semi-aggressive · 25 cm · Medium care · 22–26 °C (72–79 °F)
    • Sunshine Pleco and Galaxy Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
  • Gold Nugget Pleco⚠️ With caution
    Semi-aggressive · 28 cm · Hard care · 24–29 °C (75–84 °F)
    • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Honeycomb Pleco⚠️ With caution
    Semi-aggressive · 21 cm · Medium care · 24–29 °C (75–84 °F)
    • Sunshine Pleco and Honeycomb Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
  • Kissing Gourami⚠️ With caution
    Semi-aggressive · 30 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.
  • Leopard Cactus Pleco⚠️ With caution
    Semi-aggressive · 30 cm · Hard 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.
  • Mango Pleco⚠️ With caution
    Semi-aggressive · 28 cm · Hard care · 25–32 °C (77–90 °F)
    • Sunshine Pleco and Mango Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
  • Peacock Eel⚠️ With caution
    Semi-aggressive · 30 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.
  • Pearl Cichlid⚠️ With caution
    Semi-aggressive · 28 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.
  • Severum⚠️ With caution
    Semi-aggressive · 25 cm · Medium care · 23–30 °C (73–86 °F)
    • Sunshine Pleco and Severum can both be territorial; doable with space and dense planting, but watch for chasing.
  • Silver Cichlid⚠️ With caution
    Semi-aggressive · 30 cm · Medium care · 24–28 °C (75–82 °F)
    • Sunshine Pleco and Silver Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
  • Spotted Pleco⚠️ With caution
    Semi-aggressive · 30 cm · Easy care · 18–26 °C (64–79 °F)
    • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • Spotted Severum⚠️ With caution
    Semi-aggressive · 25 cm · Medium care · 26–30 °C (79–86 °F)
    • Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
  • True Parrot Cichlid⚠️ With caution
    Semi-aggressive · 33 cm · Hard care · 23–28 °C (73–82 °F)
    • Sunshine Pleco and True Parrot Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
  • Alligator Gar⛔ Not recommended
    Aggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
    • Two assertive fish, one genuinely aggressive: Sunshine Pleco and Alligator Gar will hold territory and clash.
    • Alligator Gar may bully the smaller Sunshine Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
    • Your 473 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)
    • Sunshine Pleco and Clown Knifefish are both territorial and at least one is outright aggressive — expect serious fighting.
    • Clown Knifefish may bully the smaller Sunshine Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
    • Your 473 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
  • Mbu Puffer⛔ Not recommended
    Aggressive · 67 cm · Hard care · 24–28 °C (75–82 °F)
    • Sunshine Pleco and Mbu Puffer are both territorial and at least one is outright aggressive — expect serious fighting.
    • Your 473 L tank is below the ~757 L this pairing really wants — crowding raises aggression.
  • Ocellaris Peacock Bass⛔ Not recommended
    Aggressive · 70 cm · Hard care · 24–30 °C (75–86 °F)
    • Sunshine Pleco and Ocellaris Peacock Bass are both territorial and at least one is outright aggressive — expect serious fighting.
    • Your 473 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
  • Redtail Catfish⛔ Not recommended
    Aggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
    • Two assertive fish, one genuinely aggressive: Sunshine Pleco and Redtail Catfish will hold territory and clash.
    • Redtail Catfish may bully the smaller Sunshine Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
    • Your 473 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)
    • Two assertive fish, one genuinely aggressive: Sunshine Pleco and Spotted Gar will hold territory and clash.
    • Spotted Gar may bully the smaller Sunshine Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
    • Your 473 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)
    • Two assertive fish, one genuinely aggressive: Sunshine Pleco and Wels Catfish will hold territory and clash.
    • Wels Catfish may bully the smaller Sunshine Pleco, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
    • Your 473 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)
    • Sunshine Pleco and Wolf Cichlid are both territorial and at least one is outright aggressive — expect serious fighting.
    • Your 473 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 sunshine pleco community tank

Give the group a stable, planted 473 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 sunshine pleco

Being semi-aggressive, sunshine pleco can nip or harass smaller, slower or long-finned fish — give it space, broken sight-lines and similarly robust companions. It mostly occupies the bottom of the tank, so it pairs naturally with species that use the other levels.

Sunshine Pleco grows to about 30 cm, so avoid tank mates small enough to be seen as food — as a rule of thumb, skip anything under roughly 15 cm. Match its water, too: aim for 23–29 °C (73–84 °F), pH 6–7.2 and 1–10 dGH. Fish needing very different conditions — coldwater species, or hard-water lovers against a soft-water fish — rarely thrive side by side.

Sunshine 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 sunshine pleco live with other fish?

Yes — with the right companions. Our checker finds 9 compatible freshwater species for sunshine 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 sunshine pleco?

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

What fish should you avoid keeping with a sunshine pleco?

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

How big a tank do sunshine pleco tank mates need?

Start from Sunshine Pleco's own minimum and scale up with every addition. The checker above defaults to a 473 L community tank and flags pairings that need more room — drag the slider to match your setup.

← Back to the full Sunshine Pleco care guide