Can Banjo Catfish and Scat (Brackish) Live Together?

Not Recommended

Banjo Catfish and Scat (Brackish) are not recommended as tank mates due to incompatible water types. Housing these species together is likely to result in stress, health problems, or direct harm to one or both fish.


At a Glance

Banjo Catfish

Bunocephalus coracoideus

Scat (Brackish)

Scatophagus argus

🐠Family Group
Banjo Catfish
Catfish
Scat (Brackish)
Oddballs
Temperament
Banjo Catfish
Peaceful (1/10)
Scat (Brackish)
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Banjo Catfish
20–28°C
Scat (Brackish)
20–28°C
pH Range
✓ Compatible
Banjo Catfish
6–8
Scat (Brackish)
7.5–8.5
Hardness (dGH)
✓ Compatible
Banjo Catfish
2–20
Scat (Brackish)
12–30
Water Type
✗ No overlap
Banjo Catfish
Freshwater Only
Scat (Brackish)
Brackish Required
Flow Preference
✗ No overlap
Banjo Catfish
Low
Scat (Brackish)
High
Min Tank Volume
Combined: 450 L
Banjo Catfish
60 L
Scat (Brackish)
450 L
Swimming Level
Shared: 1 zone
Banjo Catfish
Bottom
Scat (Brackish)
MiddleBottom
🏷️Behavior Tags
Banjo Catfish
NocturnalShy / Slow Moving (Easily Stressed)Digger (Disturbs Substrate)Shrimp EaterFry Predator
Scat (Brackish)
Plant DestroyerHyperactive / Fast SwimmerAggressive Eater (Starves shy fish)Fin Nipper
Stocking calculator

Can your tank handle Banjo Catfish and Scat (Brackish)?

Compatibility is only part of the answer. Test both fish with your real tank size, current stock, and maintenance needs to see if you have enough space and a safe stocking level before you add them.

Banjo Catfish
Scat (Brackish)
Test both in my tank

Behaviour & Temperament

Banjo Catfish is a peaceful species (1/10), while Scat (Brackish) is generally mild-mannered (4/10). This modest difference means Scat (Brackish) may occasionally assert dominance over Banjo Catfish.

Banjo Catfish and Scat (Brackish) both frequent the Bottom (Substrate) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Additional behavioural considerations to keep in mind: Hyperactive swimmers can stress shy, slow-moving species through constant motion. Aggressive eaters may outcompete shy fish for food, leading to malnutrition.

Worth noting: Banjo Catfish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters.

Water Parameters

The safe temperature window for both species falls between 20°C and 28°C. Aim for the midpoint of this range (around 24.0°C) for optimal comfort.

Both fish can tolerate a pH between 7.5 and 8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 12–20 dGH. Regular testing will ensure conditions stay within this range.

Crucially, these species require different water types — one needs freshwater while the other requires brackish conditions. This is a hard barrier to keeping them together.

Tank Setup

To house Banjo Catfish and Scat (Brackish) together, plan for an aquarium of at least 450 litres with a minimum length of 150 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.

Specific environmental needs for this combination include: Sand (Sifters), Leaf Litter/Blackwater, Smooth Gravel (Sensitive Barbels), Established Algae (Otocinclus). Meeting these requirements will help both species thrive.

Banjo Catfish prefers Low (Still Water) flow while Scat (Brackish) needs High (River/Stream) flow. Consider positioning filter outlets and using baffles to create zones of different current intensity within the same tank.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Banjo Catfish and Scat (Brackish).

Diet & Feeding

Feeding time deserves special attention with this pairing. Scat (Brackish) is an aggressive eater that may prevent Banjo Catfish from getting enough food.

Because Scat (Brackish) is a fast, competitive feeder, consider using sinking pellets or feeding at opposite ends of the setup to ensure Banjo Catfish receives an adequate share.

Frequently Asked Questions

Can Banjo Catfish and Scat (Brackish) live together?

No. This combination is not recommended. Key incompatibilities — such as different water type needs — make cohabitation unsafe.

What size tank do Banjo Catfish and Scat (Brackish) need?

A minimum of 450 litres (tank length at least 150 cm) is recommended. This provides enough space for both species to establish their own areas and reduces the likelihood of territorial disputes.

What water temperature is best for Banjo Catfish and Scat (Brackish) together?

Keep the aquarium between 20°C and 28°C. A target of around 24.0°C sits comfortably within both species' preferred ranges.

Are Banjo Catfish or Scat (Brackish) aggressive?

Banjo Catfish is peaceful (1/10) and Scat (Brackish) is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Banjo Catfish and Scat (Brackish) need?

Both species overlap in the 7.5–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Will Scat (Brackish) nip Banjo Catfish's fins?

Scat (Brackish) is a known fin nipper. If Banjo Catfish has long or flowing fins, there is a real risk of fin damage. Keeping Scat (Brackish) in a larger group can help redirect nipping behaviour toward conspecifics.

Does Banjo Catfish being nocturnal affect compatibility?

Banjo Catfish is most active after lights-out, which naturally reduces daytime encounters with its tank mate. This can actually be beneficial, as both fish get undisturbed time to feed and explore. Just ensure food reaches Banjo Catfish during evening hours.


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