Can Banded Leporinus and Blind Cave Tetra Live Together?

Possible with Caution

Keeping Banded Leporinus and Blind Cave Tetra together is possible but requires caution, though some care is needed. Provide a spacious tank of at least 380 litres with plenty of hiding spots to reduce stress. Monitor behaviour closely, especially during the first few weeks.


At a Glance

Banded Leporinus

Leporinus fasciatus

Blind Cave Tetra

Astyanax mexicanus

🐟Family Group
Banded Leporinus
Characins
Blind Cave Tetra
Characins
Temperament
Banded Leporinus
Aggressive (7/10)
Blind Cave Tetra
Mostly Peaceful (4/10)
Temperature
✓ Compatible
Banded Leporinus
22–28°C
Blind Cave Tetra
20–25°C
pH Range
✓ Compatible
Banded Leporinus
5.5–7.5
Blind Cave Tetra
6.5–8
Hardness (dGH)
✓ Compatible
Banded Leporinus
2–15
Blind Cave Tetra
8–20
Water Type
✓ Compatible
Banded Leporinus
Freshwater Only
Blind Cave Tetra
Freshwater Only
Flow Preference
✓ Compatible
Banded Leporinus
High
Blind Cave Tetra
Moderate
Min Tank Volume
Combined: 380 L
Banded Leporinus
380 L
Blind Cave Tetra
110 L
Swimming Level
Shared: 2 zones
Banded Leporinus
MiddleBottom
Blind Cave Tetra
MiddleBottom
🏷️Behavior Tags
Banded Leporinus
Plant DestroyerFin NipperJumper (Lid Required)Hyperactive / Fast SwimmerAggressive to same species/look-alikes
Blind Cave Tetra
Hyperactive / Fast SwimmerFin NipperAggressive Eater (Starves shy fish)
Stocking calculator

Can your tank handle Banded Leporinus and Blind Cave 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.

Banded Leporinus
Blind Cave Tetra
Test both in my tank

Behaviour & Temperament

Banded Leporinus is a semi-aggressive species (7/10), while Blind Cave Tetra is generally mild-mannered (4/10). This modest difference means Banded Leporinus may occasionally assert dominance over Blind Cave Tetra.

Banded Leporinus and Blind Cave Tetra both frequent the Middle (Open Water) and 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: Banded Leporinus is a known jumper, so a tight-fitting lid is essential.

To improve the chances of a peaceful coexistence in this community tank: Keep fin nippers in larger groups to distribute nipping behaviour among conspecifics rather than tank mates.

Water Parameters

The safe temperature window for both species falls between 22°C and 25°C. Aim for the midpoint of this range (around 23.5°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 8–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Banded Leporinus and Blind Cave Tetra together, plan for an aquarium of at least 380 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: Smooth Gravel (Sensitive Barbels), Driftwood (Digestion/Hiding). Meeting these requirements will help both species thrive.

Both species do well with high (river/stream) 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 Leporinus and Blind Cave Tetra.

Frequently Asked Questions

Can Banded Leporinus and Blind Cave Tetra live together?

They can coexist, but the pairing requires careful monitoring. Provide ample space (at least 380 litres), plenty of hiding spots, and watch for signs of stress or aggression.

What size tank do Banded Leporinus and Blind Cave Tetra need?

A minimum of 380 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 Leporinus and Blind Cave Tetra together?

Keep the aquarium between 22°C and 25°C. A target of around 23.5°C sits comfortably within both species' preferred ranges.

Are Banded Leporinus or Blind Cave Tetra aggressive?

Banded Leporinus is semi-aggressive (7/10) and Blind Cave Tetra is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Banded Leporinus and Blind Cave Tetra 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.

Will Banded Leporinus nip Blind Cave Tetra's fins?

Banded Leporinus is a known fin nipper. If Blind Cave Tetra has long or flowing fins, there is a real risk of fin damage. Keeping Banded Leporinus in a larger group can help redirect nipping behaviour toward conspecifics.


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