Can Amazon Leaf Fish and Zebra Spiny Eel Live Together?

Possible with Caution

Keeping Amazon Leaf Fish and Zebra Spiny Eel together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 110 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Amazon Leaf Fish

Monocirrhus polyacanthus

Zebra Spiny Eel

Mastacembelus zebrinus

🐠Family Group
Amazon Leaf Fish
Other
Zebra Spiny Eel
Oddballs
Temperament
Amazon Leaf Fish
Peaceful (2/10)
Zebra Spiny Eel
Peaceful (2/10)
Temperature
✓ Compatible
Amazon Leaf Fish
23–29°C
Zebra Spiny Eel
22–26°C
pH Range
✓ Compatible
Amazon Leaf Fish
5–6.8
Zebra Spiny Eel
6.8–8
Hardness (dGH)
✓ Compatible
Amazon Leaf Fish
0–8
Zebra Spiny Eel
5–15
Water Type
✓ Compatible
Amazon Leaf Fish
Freshwater Only
Zebra Spiny Eel
Freshwater Only
Flow Preference
✓ Compatible
Amazon Leaf Fish
Low
Zebra Spiny Eel
Moderate
Min Tank Volume
Combined: 110 L
Amazon Leaf Fish
75 L
Zebra Spiny Eel
110 L
Swimming Level
✓ Different zones
Amazon Leaf Fish
MiddleTop
Zebra Spiny Eel
Bottom
🏷️Behavior Tags
Amazon Leaf Fish
Piscivore (Eats small/nano fish)Shrimp EaterFry PredatorShy / Slow Moving (Easily Stressed)Nocturnal
Zebra Spiny Eel
Digger (Disturbs Substrate)Jumper (Lid Required)Shrimp EaterFry PredatorShy / Slow Moving (Easily Stressed)Nocturnal
Stocking calculator

Can your tank handle Amazon Leaf Fish and Zebra 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.

Amazon Leaf Fish
Zebra Spiny Eel
Test both in my tank

Behaviour & Temperament

Both Amazon Leaf Fish and Zebra Spiny Eel are peaceful species with an aggression score of 2/10. Their matching temperaments mean neither fish is likely to dominate the other in a shared aquarium.

In terms of spatial distribution, Amazon Leaf Fish prefers the Middle (Open Water) and Top (Surface) zones, whereas Zebra 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: Amazon Leaf Fish is nocturnal and will be most active after lights-out, naturally reducing daytime encounters. Also, Zebra Spiny Eel 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 26°C. Aim for the midpoint of this range (around 24.5°C) for optimal comfort.

Both fish can tolerate a pH between 6.8 and 6.8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 5–8 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Amazon Leaf Fish and Zebra Spiny Eel together, plan for an aquarium of at least 110 litres with a minimum length of 80 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Because this pairing requires extra vigilance, include plenty of hiding spots — caves, driftwood, and dense plant clusters — so the less dominant fish can retreat when needed.

Specific environmental needs for this combination include: Leaf Litter/Blackwater, Plants - Densely covered, Driftwood (Digestion/Hiding), 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 Amazon Leaf Fish and Zebra Spiny Eel.

Show 12 more tank sizes

Frequently Asked Questions

Can Amazon Leaf Fish and Zebra Spiny Eel live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 110 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Amazon Leaf Fish and Zebra Spiny Eel need?

A minimum of 110 litres (tank length at least 80 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 Amazon Leaf Fish and Zebra Spiny Eel together?

Keep the aquarium between 23°C and 26°C. A target of around 24.5°C sits comfortably within both species' preferred ranges.

Are Amazon Leaf Fish or Zebra Spiny Eel aggressive?

Amazon Leaf Fish is peaceful (2/10) and Zebra Spiny Eel is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Amazon Leaf Fish and Zebra Spiny Eel need?

Both species overlap in the 6.8–6.8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Does Amazon Leaf Fish being nocturnal affect compatibility?

Amazon Leaf Fish 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 Amazon Leaf Fish during evening hours.


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