Can Banana Loach and Congo Tetra Live Together?

Possible with Caution

Keeping Banana Loach and Congo Tetra together is possible but requires caution due to potential behavioral clashes. Provide a spacious tank of at least 200 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Banana Loach

Acantopsis choirorhynchos

Congo Tetra

Phenacogrammus interruptus

🐠Family Group
Banana Loach
Loaches
Congo Tetra
Characins
Temperament
Banana Loach
Peaceful (2/10)
Congo Tetra
Peaceful (2/10)
Temperature
✓ Compatible
Banana Loach
22–28°C
Congo Tetra
23–28°C
pH Range
✓ Compatible
Banana Loach
6–7.8
Congo Tetra
6–7.5
Hardness (dGH)
✓ Compatible
Banana Loach
2–15
Congo Tetra
3–18
Water Type
✓ Compatible
Banana Loach
Freshwater Only
Congo Tetra
Freshwater Only
Flow Preference
✓ Compatible
Banana Loach
Moderate
Congo Tetra
Moderate
Min Tank Volume
Combined: 200 L
Banana Loach
200 L
Congo Tetra
110 L
Swimming Level
✓ Different zones
Banana Loach
Bottom
Congo Tetra
MiddleTop
🏷️Behavior Tags
Banana Loach
Digger (Disturbs Substrate)Shy / Slow Moving (Easily Stressed)Nocturnal
Congo Tetra
Hyperactive / Fast SwimmerShy / Slow Moving (Easily Stressed)Jumper (Lid Required)Fry Predator
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Can your tank handle Banana Loach and Congo Tetra?

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.

Banana Loach
Congo Tetra
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Behaviour & Temperament

Both Banana Loach and Congo Tetra 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, Banana Loach prefers the Bottom (Substrate) zone, whereas Congo Tetra occupies the Middle (Open Water) and Top (Surface) zones. Because they use different levels of the water column, territorial disputes are less likely and the tank will appear more balanced.

Additional behavioural considerations to keep in mind: Hyperactive swimmers can stress shy, slow-moving species through constant motion.

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

To improve the chances of a peaceful coexistence in this community tank: A larger aquarium with ample hiding spots can help diffuse aggression and give the less dominant fish space to retreat.

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 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 3–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Banana Loach and Congo Tetra 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.

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: Sand (Sifters), Smooth Gravel (Sensitive Barbels), Plants - Densely covered, Plants - Floating. 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 Banana Loach and Congo Tetra.

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Frequently Asked Questions

Can Banana Loach and Congo Tetra live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 200 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Banana Loach and Congo Tetra 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 Banana Loach and Congo Tetra 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 Banana Loach or Congo Tetra aggressive?

Banana Loach is peaceful (2/10) and Congo Tetra is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Banana Loach and Congo Tetra need?

Both species overlap in the 6–7.5 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Does Banana Loach being nocturnal affect compatibility?

Banana Loach 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 Banana Loach during evening hours.


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