Can Lima Shovelnose Catfish and Peacock Eel Live Together?

Ideal Tank Mates

Yes, Lima Shovelnose Catfish and Peacock Eel are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. A minimum tank size of 500 litres is recommended.


At a Glance

Lima Shovelnose Catfish

Sorubim lima

Peacock Eel

Macrognathus siamensis

🐠Family Group
Lima Shovelnose Catfish
Catfish
Peacock Eel
Oddballs
Temperament
Lima Shovelnose Catfish
Mostly Peaceful (4/10)
Peacock Eel
Peaceful (2/10)
Temperature
✓ Compatible
Lima Shovelnose Catfish
23–28°C
Peacock Eel
23–28°C
pH Range
✓ Compatible
Lima Shovelnose Catfish
6–7.5
Peacock Eel
6.5–8
Hardness (dGH)
✓ Compatible
Lima Shovelnose Catfish
4–15
Peacock Eel
5–15
Water Type
✓ Compatible
Lima Shovelnose Catfish
Freshwater Only
Peacock Eel
Freshwater Only
Flow Preference
✓ Compatible
Lima Shovelnose Catfish
Moderate
Peacock Eel
Low
Min Tank Volume
Combined: 500 L
Lima Shovelnose Catfish
500 L
Peacock Eel
150 L
Swimming Level
Shared: 1 zone
Lima Shovelnose Catfish
MiddleBottom
Peacock Eel
Bottom
🏷️Behavior Tags
Lima Shovelnose Catfish
Piscivore (Eats small/nano fish)NocturnalJumper (Lid Required)Shrimp Eater
Peacock Eel
Digger (Disturbs Substrate)Jumper (Lid Required)NocturnalShy / Slow Moving (Easily Stressed)Shrimp EaterFry PredatorAggressive Eater (Starves shy fish)
Stocking calculator

Can your tank handle Lima Shovelnose Catfish and Peacock Eel?

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.

Lima Shovelnose Catfish
Peacock Eel
Test both in my tank

Behaviour & Temperament

Lima Shovelnose Catfish is a generally mild-mannered species (4/10), while Peacock Eel is peaceful (2/10). This modest difference means Lima Shovelnose Catfish may occasionally assert dominance over Peacock Eel.

Lima Shovelnose Catfish and Peacock Eel 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.

Worth noting: Lima Shovelnose Catfish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Lima Shovelnose Catfish is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 23°C and 28°C. Aim for the midpoint of this range (around 25.5°C) for optimal comfort.

Both fish can tolerate a pH between 6.5 and 7.5. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 5–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Lima Shovelnose Catfish and Peacock Eel together, plan for an aquarium of at least 500 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), Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding), Plants - Floating, Plants - Densely covered. Meeting these requirements will help both species thrive.

Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Lima Shovelnose Catfish and Peacock Eel.

Frequently Asked Questions

Can Lima Shovelnose Catfish and Peacock Eel live together?

Yes. Lima Shovelnose Catfish and Peacock Eel are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Lima Shovelnose Catfish and Peacock Eel need?

A minimum of 500 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 Lima Shovelnose Catfish and Peacock Eel together?

Keep the aquarium between 23°C and 28°C. A target of around 25.5°C sits comfortably within both species' preferred ranges.

Are Lima Shovelnose Catfish or Peacock Eel aggressive?

Lima Shovelnose Catfish is generally mild-mannered (4/10) and Peacock Eel is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Lima Shovelnose Catfish and Peacock Eel need?

Both species overlap in the 6.5–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Does Lima Shovelnose Catfish being nocturnal affect compatibility?

Lima Shovelnose 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 Lima Shovelnose Catfish during evening hours.


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