Spotted Severum Tank Mates
Spotted Severum is semi-aggressive, so its tank mates need choosing with care. Here are the 10 freshwater species that pair well with a spotted severum — plus the 190 to avoid — with a live checker you can tune to your own tank.
The best tank mates for a spotted severum
- Bristlenose Pleco ✅ CompatibleEasy care · Peaceful · 12 cm · 23–30 °C (73–86 °F)Compatible on the things that matter: shared water near 26–30 °C, workable temperaments, and no predator-and-prey size gap.
- Rubber Lip Pleco ✅ CompatibleEasy care · Peaceful · 12 cm · 20–26 °C (68–79 °F)Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 26–26 °C — no size, zone or temperament conflicts.
- Marbled Hoplo ✅ CompatibleEasy care · Peaceful · 14 cm · 22–28 °C (72–82 °F)Compatible on the things that matter: shared water near 26–28 °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 26–26 °C, workable temperaments, and no predator-and-prey size gap.
- Medusa Pleco ✅ CompatibleMedium care · Peaceful · 12 cm · 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.
- 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)Compatible on the things that matter: shared water near 26–26 °C, workable temperaments, and no predator-and-prey size gap.
- 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.
- Yellow-spotted Pleco ✅ CompatibleMedium 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.
- Elephant-nose Knifefish ✅ CompatibleHard care · Peaceful · 35 cm · 24–29 °C (75–84 °F)Compatible on the things that matter: shared water near 26–29 °C, workable temperaments, and no predator-and-prey size gap.
Spotted Severum tank mates that can work with care
- Adolf's Cory ⚠️ With cautionMedium care · Peaceful · 5.5 cm · 22–26 °C (72–79 °F)Spotted Severum 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)Different pH ranges (5.5–7.5 vs 7.8–8.6); doable if you sit in the shared band, but not ideal long-term.
- Agassiz's Corydoras ⚠️ With cautionEasy care · Peaceful · 6 cm · 22–28 °C (72–82 °F)Spotted Severum 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)Spotted Severum and Agassiz's Dwarf Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Altifrons Geophagus ⚠️ With cautionMedium care · Semi-aggressive · 25 cm · 24–28 °C (75–82 °F)Spotted Severum and Altifrons Geophagus can both be territorial; doable with space and dense planting, but watch for chasing.
- Amano Shrimp ⚠️ With cautionEasy care · Peaceful · 5 cm · 18–28 °C (64–82 °F)Spotted Severum may eat Amano Shrimp or pick off its shrimplets — a densely planted tank with moss gives them a fighting chance.
- Angelfish ⚠️ With cautionMedium 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 cautionMedium care · Semi-aggressive · 25 cm · 23–27 °C (73–81 °F)Spotted Severum and Angelicus Synodontis can both be territorial; doable with space and dense planting, but watch for chasing.
+ 132 more “with caution” pairings — see the interactive checker above.
Fish to avoid keeping with a spotted severum
- Wels Catfish ⛔ AvoidHard care · Aggressive · 300 cm · 15–25 °C (59–77 °F)Temperature needs don't overlap (Spotted Severum 26–30 °C vs Wels Catfish 15–25 °C).
- Alligator Gar ⛔ AvoidHard care · Aggressive · 250 cm · 24–28 °C (75–82 °F)Two assertive fish, one genuinely aggressive: Spotted Severum and Alligator Gar will hold territory and clash.
- Redtail Catfish ⛔ AvoidHard care · Aggressive · 120 cm · 24–27 °C (75–81 °F)Two assertive fish, one genuinely aggressive: Spotted Severum and Redtail Catfish will hold territory and clash.
- Fire Eel ⛔ AvoidMedium care · Semi-aggressive · 100 cm · 24–28 °C (75–82 °F)Size gap is too large (100 vs 25 cm): Fire Eel will treat Spotted Severum as food.
- Clown Knifefish ⛔ AvoidHard care · Aggressive · 90 cm · 24–28 °C (75–82 °F)Spotted Severum and Clown Knifefish are both territorial and at least one is outright aggressive — expect serious fighting.
- Koi ⛔ AvoidMedium care · Peaceful · 90 cm · 4–28 °C (39–82 °F)Koi (90 cm) is big enough to swallow the 25 cm Spotted Severum whole.
- Spotted Gar ⛔ AvoidHard care · Aggressive · 90 cm · 18–26 °C (64–79 °F)Two assertive fish, one genuinely aggressive: Spotted Severum and Spotted Gar will hold territory and clash.
- Wolf Cichlid ⛔ AvoidHard care · Aggressive · 72 cm · 24–30 °C (75–86 °F)Spotted Severum and Wolf Cichlid are both territorial and at least one is outright aggressive — expect serious fighting.
+ 182 more to avoid — the checker above flags every one.
Check any fish against a spotted severum
Dial in your exact tank size and filter by result — the checker scores every species in our database against a spotted severum, with the reasoning for each verdict.
Tank-mate checker
Will it live with a Spotted Severum?
We compare each fish against your spotted severum 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)
- Compatible on the things that matter: shared water near 26–26 °C, workable temperaments, and no predator-and-prey size gap.
- Bristlenose Pleco✅ CompatiblePeaceful · 12 cm · Easy care · 23–30 °C (73–86 °F)
- Compatible on the things that matter: shared water near 26–30 °C, workable temperaments, and no predator-and-prey size gap.
- Elephant-nose Knifefish✅ CompatiblePeaceful · 35 cm · Hard care · 24–29 °C (75–84 °F)
- Compatible on the things that matter: shared water near 26–29 °C, workable temperaments, and no predator-and-prey size gap.
- Marbled Hoplo✅ CompatiblePeaceful · 14 cm · Easy care · 22–28 °C (72–82 °F)
- Compatible on the things that matter: shared water near 26–28 °C, workable temperaments, and no predator-and-prey size gap.
- Medusa Pleco✅ CompatiblePeaceful · 12 cm · Medium 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.
- Rubber Lip Pleco✅ CompatiblePeaceful · 12 cm · Easy care · 20–26 °C (68–79 °F)
- Semi-aggressive + Peaceful, but with no direct clash here, and their water overlaps around 26–26 °C — no size, zone or temperament conflicts.
- 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.
- 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.
- Spotted Talking Catfish✅ CompatiblePeaceful · 15 cm · Easy care · 22–26 °C (72–79 °F)
- Compatible on the things that matter: shared water near 26–26 °C, workable temperaments, and no predator-and-prey size gap.
- Yellow-spotted Pleco✅ CompatiblePeaceful · 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.
- Altifrons Geophagus⚠️ With cautionSemi-aggressive · 25 cm · Medium care · 24–28 °C (75–82 °F)
- Spotted Severum and Altifrons Geophagus can both be territorial; doable with space and dense planting, but watch for chasing.
- Your 300 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.
- Angelicus Synodontis⚠️ With cautionSemi-aggressive · 25 cm · Medium care · 23–27 °C (73–81 °F)
- Spotted Severum and Angelicus Synodontis can both be territorial; doable with space and dense planting, but watch for chasing.
- Blood Parrot Cichlid⚠️ With cautionSemi-aggressive · 20 cm · Medium care · 24–28 °C (75–82 °F)
- Spotted Severum and Blood Parrot Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Clown Loach⚠️ With cautionPeaceful · 30 cm · Medium care · 25–30 °C (77–86 °F)
- Your 300 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)
- Spotted Severum and Galaxy Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
- Gold Nugget Pleco⚠️ With cautionSemi-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 cautionSemi-aggressive · 21 cm · Medium care · 24–29 °C (75–84 °F)
- Spotted Severum and Honeycomb Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
- Kissing Gourami⚠️ With cautionSemi-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 cautionSemi-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.
- Your 300 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)
- Spotted Severum and Mango Pleco can both be territorial; doable with space and dense planting, but watch for chasing.
- Peacock Eel⚠️ With cautionSemi-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 cautionSemi-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 cautionSemi-aggressive · 25 cm · Medium care · 23–30 °C (73–86 °F)
- Spotted Severum and Severum can both be territorial; doable with space and dense planting, but watch for chasing.
- Silver Cichlid⚠️ With cautionSemi-aggressive · 30 cm · Medium care · 24–28 °C (75–82 °F)
- Spotted Severum and Silver Cichlid can both be territorial; doable with space and dense planting, but watch for chasing.
- Spotted Pleco⚠️ With cautionSemi-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.
- Sunshine Pleco⚠️ With cautionSemi-aggressive · 30 cm · Hard care · 23–29 °C (73–84 °F)
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 300 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)
- Two assertive fish, one genuinely aggressive: Spotted Severum and Alligator Gar will hold territory and clash.
- Size gap is too large (250 vs 25 cm): Alligator Gar will treat Spotted Severum as food.
- Your 300 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)
- Spotted Severum and Clown Knifefish are both territorial and at least one is outright aggressive — expect serious fighting.
- Size gap is too large (90 vs 25 cm): Clown Knifefish will treat Spotted Severum as food.
- Your 300 L tank is below the ~750 L this pairing really wants — crowding raises aggression.
- Fire Eel⛔ Not recommendedSemi-aggressive · 100 cm · Medium care · 24–28 °C (75–82 °F)
- Size gap is too large (100 vs 25 cm): Fire Eel will treat Spotted Severum as food.
- Both are a bit pushy (semi-aggressive + semi-aggressive) — workable only in a larger tank with cover and broken sight lines.
- Your 300 L tank is below the ~380 L this pairing really wants — crowding raises aggression.
- Koi⛔ Not recommendedPeaceful · 90 cm · Medium care · 4–28 °C (39–82 °F)
- Koi (90 cm) is big enough to swallow the 25 cm Spotted Severum whole.
- Your 300 L tank is below the ~3800 L this pairing really wants — crowding raises aggression.
- Redtail Catfish⛔ Not recommendedAggressive · 120 cm · Hard care · 24–27 °C (75–81 °F)
- Two assertive fish, one genuinely aggressive: Spotted Severum and Redtail Catfish will hold territory and clash.
- Size gap is too large (120 vs 25 cm): Redtail Catfish will treat Spotted Severum as food.
- Your 300 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)
- Two assertive fish, one genuinely aggressive: Spotted Severum and Spotted Gar will hold territory and clash.
- Spotted Gar (90 cm) is big enough to swallow the 25 cm Spotted Severum whole.
- Your 300 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)
- Temperature needs don't overlap (Spotted Severum 26–30 °C vs Wels Catfish 15–25 °C).
- Two assertive fish, one genuinely aggressive: Spotted Severum and Wels Catfish will hold territory and clash.
- Wels Catfish (300 cm) is big enough to swallow the 25 cm Spotted Severum whole.
- Your 300 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)
- Spotted Severum and Wolf Cichlid are both territorial and at least one is outright aggressive — expect serious fighting.
- Wolf Cichlid (72 cm) is big enough to swallow the 25 cm Spotted Severum whole.
- Your 300 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 spotted severum community tank
Give the group a stable, planted 300 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.
As an Amazon Associate we earn from qualifying purchases — buying through these links costs you nothing extra.
How to choose the right tank mates for a spotted severum
Being semi-aggressive, spotted severum can nip or harass smaller, slower or long-finned fish — give it space, broken sight-lines and similarly robust companions. It mostly occupies the middle of the tank, so it pairs naturally with species that use the other levels.
Spotted Severum 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 26–30 °C (79–86 °F), pH 5.5–7.5 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.
Spotted Severum 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 a spotted severum live with other fish?
Yes — with the right companions. Our checker finds 10 compatible freshwater species for spotted severum. 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 spotted severum?
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 a spotted severum?
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 spotted severum tank mates need?
Start from Spotted Severum's own minimum and scale up with every addition. The checker above defaults to a 300 L community tank and flags pairings that need more room — drag the slider to match your setup.