Angelicus Synodontis Tank Mates
Angelicus Synodontis is semi-aggressive, so its tank mates need choosing with care. Here are the 10 freshwater species that pair well with an angelicus synodontis — plus the 180 to avoid — with a live checker you can tune to your own tank.
The best tank mates for an angelicus synodontis
- Bristlenose Pleco ✅ CompatibleEasy care · Peaceful · 12 cm · 23–30 °C (73–86 °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.
- Rubber Lip Pleco ✅ CompatibleEasy care · Peaceful · 12 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.
- Marbled Hoplo ✅ CompatibleEasy care · Peaceful · 14 cm · 22–28 °C (72–82 °F)Compatible on the things that matter: shared water near 23–27 °C, workable temperaments, and no predator-and-prey size gap.
- Spotted Talking Catfish ✅ CompatibleEasy care · Peaceful · 15 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.
- Weather Loach ✅ CompatibleEasy care · Peaceful · 25 cm · 5–24 °C (41–75 °F)Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 23–24 °C — no size, zone or temperament conflicts.
- Medusa Pleco ✅ CompatibleMedium care · Peaceful · 12 cm · 26–30 °C (79–86 °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.
- Spotted Rubbernose Pleco ✅ CompatibleMedium care · Peaceful · 12 cm · 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.
- Banjo Catfish ✅ CompatibleMedium care · Peaceful · 15 cm · 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.
- Snowball Pleco ✅ CompatibleMedium 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.
- Elephant-nose Knifefish ✅ CompatibleHard 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.
Angelicus Synodontis tank mates that can work with care
- Adolf's Cory ⚠️ With cautionMedium care · Peaceful · 5.5 cm · 22–26 °C (72–79 °F)Angelicus Synodontis may bully the smaller Adolf's Cory, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Afra Cichlid ⚠️ With cautionMedium care · Semi-aggressive · 10 cm · 24–28 °C (75–82 °F)Angelicus Synodontis and Afra Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Agassiz's Corydoras ⚠️ With cautionEasy care · Peaceful · 6 cm · 22–28 °C (72–82 °F)Angelicus Synodontis may bully the smaller Agassiz's Corydoras, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Agassiz's Dwarf Cichlid ⚠️ With cautionMedium care · Semi-aggressive · 9 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.
- Altifrons Geophagus ⚠️ With cautionMedium care · Semi-aggressive · 25 cm · 24–28 °C (75–82 °F)Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Amano Shrimp ⚠️ With cautionEasy care · Peaceful · 5 cm · 18–28 °C (64–82 °F)Adult Amano Shrimp might survive with Angelicus Synodontis, but expect the young to be eaten — plant heavily.
- Angelfish ⚠️ With cautionMedium care · Semi-aggressive · 15 cm · 24–30 °C (75–86 °F)Angelicus Synodontis and Angelfish can both be territorial; doable with space and dense planting, but watch for chasing.
- Assassin Snail ⚠️ With cautionEasy care · Peaceful · 3 cm · 22–26 °C (72–79 °F)Angelicus Synodontis may bully the smaller Assassin Snail, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
+ 142 more “with caution” pairings — see the interactive checker above.
Fish to avoid keeping with an angelicus synodontis
- Wels Catfish ⛔ AvoidHard care · Aggressive · 300 cm · 15–25 °C (59–77 °F)Angelicus Synodontis and Wels Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
- Alligator Gar ⛔ AvoidHard care · Aggressive · 250 cm · 24–28 °C (75–82 °F)Angelicus Synodontis and Alligator Gar are both territorial and at least one is outright aggressive — expect serious fighting.
- Redtail Catfish ⛔ AvoidHard care · Aggressive · 120 cm · 24–27 °C (75–81 °F)Angelicus Synodontis and Redtail Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
- Clown Knifefish ⛔ AvoidHard care · Aggressive · 90 cm · 24–28 °C (75–82 °F)Two assertive fish, one genuinely aggressive: Angelicus Synodontis and Clown Knifefish will hold territory and clash.
- Spotted Gar ⛔ AvoidHard care · Aggressive · 90 cm · 18–26 °C (64–79 °F)Angelicus Synodontis and Spotted Gar are both territorial and at least one is outright aggressive — expect serious fighting.
- Wolf Cichlid ⛔ AvoidHard care · Aggressive · 72 cm · 24–30 °C (75–86 °F)Two assertive fish, one genuinely aggressive: Angelicus Synodontis and Wolf Cichlid will hold territory and clash.
- Ocellaris Peacock Bass ⛔ AvoidHard care · Aggressive · 70 cm · 24–30 °C (75–86 °F)Two assertive fish, one genuinely aggressive: Angelicus Synodontis and Ocellaris Peacock Bass will hold territory and clash.
- Mbu Puffer ⛔ AvoidHard care · Aggressive · 67 cm · 24–28 °C (75–82 °F)Two assertive fish, one genuinely aggressive: Angelicus Synodontis and Mbu Puffer will hold territory and clash.
+ 172 more to avoid — the checker above flags every one.
Check any fish against an angelicus synodontis
Dial in your exact tank size and filter by result — the checker scores every species in our database against an angelicus synodontis, with the reasoning for each verdict.
Tank-mate checker
Will it live with a Angelicus Synodontis?
We compare each fish against your angelicus synodontis on temperament, size, water parameters and swimming zone. Set your tank size and filter the results.
- Banjo Catfish✅ CompatiblePeaceful · 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.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Bristlenose Pleco✅ CompatiblePeaceful · 12 cm · Easy care · 23–30 °C (73–86 °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.
- Elephant-nose Knifefish✅ CompatiblePeaceful · 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✅ CompatiblePeaceful · 14 cm · Easy care · 22–28 °C (72–82 °F)
- Compatible on the things that matter: shared water near 23–27 °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.
- Medusa Pleco✅ CompatiblePeaceful · 12 cm · Medium care · 26–30 °C (79–86 °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.
- Rubber Lip Pleco✅ CompatiblePeaceful · 12 cm · Easy 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.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Snowball Pleco✅ CompatiblePeaceful · 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 Rubbernose Pleco✅ CompatiblePeaceful · 12 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.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Spotted Talking Catfish✅ CompatiblePeaceful · 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.
- Both favour the bottom of the tank — offer enough cover so they aren't always in each other's space.
- Weather Loach✅ CompatiblePeaceful · 25 cm · Easy care · 5–24 °C (41–75 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 23–24 °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.
- Altifrons Geophagus⚠️ With cautionSemi-aggressive · 25 cm · Medium care · 24–28 °C (75–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 200 L tank is below the ~378 L this pairing really wants — crowding raises aggression.
- Keep Altifrons Geophagus in a shoal of 6+ or it gets stressed and nippy.
- Black Collared Catfish⚠️ With cautionSemi-aggressive · 27 cm · Hard care · 23–25 °C (73–77 °F)
- Angelicus Synodontis and Black Collared Catfish can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 200 L tank is below the ~243 L this pairing really wants — crowding raises aggression.
- Clown Loach⚠️ With cautionPeaceful · 30 cm · Medium care · 25–30 °C (77–86 °F)
- Your 200 L tank is below the ~400 L this pairing really wants — crowding raises aggression.
- Galaxy Pleco⚠️ With cautionSemi-aggressive · 25 cm · Medium care · 22–26 °C (72–79 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Gold Nugget Pleco⚠️ With cautionSemi-aggressive · 28 cm · Hard care · 24–29 °C (75–84 °F)
- Angelicus Synodontis and Gold Nugget Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 200 L tank is below the ~250 L this pairing really wants — crowding raises aggression.
- Honeycomb Pleco⚠️ With cautionSemi-aggressive · 21 cm · Medium 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.
- Your 200 L tank is below the ~280 L this pairing really wants — crowding raises aggression.
- Kissing Gourami⚠️ With cautionSemi-aggressive · 30 cm · Medium care · 22–28 °C (72–82 °F)
- Angelicus Synodontis and Kissing Gourami can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 200 L tank is below the ~280 L this pairing really wants — crowding raises aggression.
- Leopard Cactus Pleco⚠️ With cautionSemi-aggressive · 30 cm · Hard care · 24–30 °C (75–86 °F)
- Angelicus Synodontis and Leopard Cactus Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 200 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
- Mango Pleco⚠️ With cautionSemi-aggressive · 28 cm · Hard care · 25–32 °C (77–90 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 200 L tank is below the ~265 L this pairing really wants — crowding raises aggression.
- Peacock Eel⚠️ With cautionSemi-aggressive · 30 cm · Medium care · 22–28 °C (72–82 °F)
- Angelicus Synodontis and Peacock Eel can both be territorial; doable with space and dense planting, but watch for chasing.
- Pearl Cichlid⚠️ With cautionSemi-aggressive · 28 cm · Medium care · 22–28 °C (72–82 °F)
- Angelicus Synodontis and Pearl Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Severum⚠️ With cautionSemi-aggressive · 25 cm · Medium care · 23–30 °C (73–86 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 200 L tank is below the ~280 L this pairing really wants — crowding raises aggression.
- Silver Cichlid⚠️ With cautionSemi-aggressive · 30 cm · Medium care · 24–28 °C (75–82 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 200 L tank is below the ~280 L this pairing really wants — crowding raises aggression.
- Spotted Pleco⚠️ With cautionSemi-aggressive · 30 cm · Easy care · 18–26 °C (64–79 °F)
- Angelicus Synodontis and Spotted Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
- Spotted Severum⚠️ With cautionSemi-aggressive · 25 cm · Medium care · 26–30 °C (79–86 °F)
- Angelicus Synodontis and Spotted Severum can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 200 L tank is below the ~300 L this pairing really wants — crowding raises aggression.
- Sunshine Pleco⚠️ With cautionSemi-aggressive · 30 cm · Hard care · 23–29 °C (73–84 °F)
- Angelicus Synodontis and Sunshine Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 200 L tank is below the ~473 L this pairing really wants — crowding raises aggression.
- Alligator Gar⛔ Not recommendedAggressive · 250 cm · Hard care · 24–28 °C (75–82 °F)
- Angelicus Synodontis and Alligator Gar are both territorial and at least one is outright aggressive — expect serious fighting.
- Alligator Gar may bully the smaller Angelicus Synodontis, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 200 L tank is below the ~3785 L this pairing really wants — crowding raises aggression.
- Clown Knifefish⛔ Not recommendedAggressive · 90 cm · Hard care · 24–28 °C (75–82 °F)
- Two assertive fish, one genuinely aggressive: Angelicus Synodontis and Clown Knifefish will hold territory and clash.
- Clown Knifefish may bully the smaller Angelicus Synodontis, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 200 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
- Mbu Puffer⛔ Not recommendedAggressive · 67 cm · Hard care · 24–28 °C (75–82 °F)
- Two assertive fish, one genuinely aggressive: Angelicus Synodontis and Mbu Puffer will hold territory and clash.
- Mbu Puffer may bully the smaller Angelicus Synodontis, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 200 L tank is below the ~757 L this pairing really wants — crowding raises aggression.
- Ocellaris Peacock Bass⛔ Not recommendedAggressive · 70 cm · Hard care · 24–30 °C (75–86 °F)
- Two assertive fish, one genuinely aggressive: Angelicus Synodontis and Ocellaris Peacock Bass will hold territory and clash.
- Ocellaris Peacock Bass may bully the smaller Angelicus Synodontis, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 200 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
- Redtail Catfish⛔ Not recommendedAggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
- Angelicus Synodontis and Redtail Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
- Redtail Catfish may bully the smaller Angelicus Synodontis, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 200 L tank is below the ~5700 L this pairing really wants — crowding raises aggression.
- Spotted Gar⛔ Not recommendedAggressive · 90 cm · Hard care · 18–26 °C (64–79 °F)
- Angelicus Synodontis and Spotted Gar are both territorial and at least one is outright aggressive — expect serious fighting.
- Spotted Gar may bully the smaller Angelicus Synodontis, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 200 L tank is below the ~600 L this pairing really wants — crowding raises aggression.
- Wels Catfish⛔ Not recommendedAggressive · 300 cm · Hard care · 15–25 °C (59–77 °F)
- Angelicus Synodontis and Wels Catfish are both territorial and at least one is outright aggressive — expect serious fighting.
- Wels Catfish may bully the smaller Angelicus Synodontis, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 200 L tank is below the ~20000 L this pairing really wants — crowding raises aggression.
- Wolf Cichlid⛔ Not recommendedAggressive · 72 cm · Hard care · 24–30 °C (75–86 °F)
- Two assertive fish, one genuinely aggressive: Angelicus Synodontis and Wolf Cichlid will hold territory and clash.
- Wolf Cichlid may bully the smaller Angelicus Synodontis, though its armour makes it a hard meal — give it caves and driftwood to retreat into.
- Your 200 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 an angelicus synodontis community tank
Give the group a stable, planted 200 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 the right tank mates for an angelicus synodontis
Being semi-aggressive, angelicus synodontis 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.
Angelicus Synodontis 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 23–27 °C (73–81 °F), pH 6.5–7.8 and 5–15 dGH. Fish needing very different conditions — coldwater species, or hard-water lovers against a soft-water fish — rarely thrive side by side.
Angelicus Synodontis 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.
Frequently asked questions
Can an angelicus synodontis live with other fish?
Yes — with the right companions. Our checker finds 10 compatible freshwater species for angelicus synodontis. 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 an angelicus synodontis?
Easy, peaceful, similarly-sized species top the list — for example Bristlenose Pleco, Rubber Lip Pleco, Marbled Hoplo. Use the checker above to match against your own tank size.
What fish should you avoid keeping with an angelicus synodontis?
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 angelicus synodontis tank mates need?
Start from Angelicus Synodontis's own minimum and scale up with every addition. The checker above defaults to a 200 L community tank and flags pairings that need more room — drag the slider to match your setup.