Can Banded Gourami and Lesser Spiny Eel Live Together?

Ideal Tank Mates

Yes, Banded Gourami and Lesser Spiny Eel are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. They occupy different areas of the water column, which reduces competition for space. A minimum tank size of 200 litres is recommended.


At a Glance

Banded Gourami

Trichogaster fasciata

Lesser Spiny Eel

Macrognathus aculeatus

🐠Family Group
Banded Gourami
Anabantoids
Lesser Spiny Eel
Oddballs
Temperament
Banded Gourami
Mostly Peaceful (4/10)
Lesser Spiny Eel
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Banded Gourami
22–28°C
Lesser Spiny Eel
23–28°C
pH Range
✓ Compatible
Banded Gourami
6–7.5
Lesser Spiny Eel
6.5–8
Hardness (dGH)
✓ Compatible
Banded Gourami
4–15
Lesser Spiny Eel
5–15
Water Type
✓ Compatible
Banded Gourami
Freshwater Only
Lesser Spiny Eel
Brackish Tolerant
Flow Preference
✓ Compatible
Banded Gourami
Low
Lesser Spiny Eel
Moderate
Min Tank Volume
Combined: 200 L
Banded Gourami
110 L
Lesser Spiny Eel
200 L
Swimming Level
✓ Different zones
Banded Gourami
TopMiddle
Lesser Spiny Eel
Bottom
🏷️Behavior Tags
Banded Gourami
Fry PredatorJumper (Lid Required)
Lesser Spiny Eel
NocturnalDigger (Disturbs Substrate)Jumper (Lid Required)Shy / Slow Moving (Easily Stressed)Piscivore (Eats small/nano fish)Shrimp EaterFry Predator
Stocking calculator

Can your tank handle Banded Gourami and Lesser Spiny 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.

Banded Gourami
Lesser Spiny Eel
Test both in my tank

Behaviour & Temperament

Both Banded Gourami and Lesser Spiny Eel are generally mild-mannered species with an aggression score of 4/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.

In terms of spatial distribution, Banded Gourami prefers the Top (Surface) and Middle (Open Water) zones, whereas Lesser Spiny Eel occupies the Bottom (Substrate) zone. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Worth noting: Lesser Spiny Eel is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Banded Gourami 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 Banded Gourami and Lesser Spiny Eel together, plan for an aquarium of at least 200 litres with a minimum length of 120 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: Plants - Densely covered, Plants - Floating, Sand (Sifters), Smooth Gravel (Sensitive Barbels). Meeting these requirements will help both species thrive.

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

Suitable Tank Sizes

Standard aquarium sizes large enough for both Banded Gourami and Lesser Spiny Eel.

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Frequently Asked Questions

Can Banded Gourami and Lesser Spiny Eel live together?

Yes. Banded Gourami and Lesser Spiny Eel are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Banded Gourami and Lesser Spiny Eel need?

A minimum of 200 litres (tank length at least 120 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 Banded Gourami and Lesser Spiny 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 Banded Gourami or Lesser Spiny Eel aggressive?

Banded Gourami is generally mild-mannered (4/10) and Lesser Spiny Eel is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Banded Gourami and Lesser Spiny 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 Lesser Spiny Eel being nocturnal affect compatibility?

Lesser Spiny Eel 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 Lesser Spiny Eel during evening hours.


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