Can Espei Rasbora (Lambchop Rasbora) and Long-Finned African Tetra Live Together?

Reviewed by Guidarium Editorial DeskUpdated May 6, 2026
Possible with Caution

Keeping Espei Rasbora (Lambchop Rasbora) and Long-Finned African Tetra together is possible but requires caution due to mismatched flow preferences. 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

Espei Rasbora (Lambchop Rasbora)

Trigonostigma espei

Long-Finned African Tetra

Brycinus longipinnis

🐠Family Group
Espei Rasbora (Lambchop Rasbora)
Cyprinids
Long-Finned African Tetra
Characins
Temperament
Espei Rasbora (Lambchop Rasbora)
Peaceful (1/10)
Long-Finned African Tetra
Peaceful (2/10)
Temperature
✓ Compatible
Espei Rasbora (Lambchop Rasbora)
23–28°C
Long-Finned African Tetra
22–26°C
pH Range
✓ Compatible
Espei Rasbora (Lambchop Rasbora)
5.5–7.5
Long-Finned African Tetra
6–8
Hardness (dGH)
✓ Compatible
Espei Rasbora (Lambchop Rasbora)
1–12
Long-Finned African Tetra
5–19
Water Type
✓ Compatible
Espei Rasbora (Lambchop Rasbora)
Freshwater Only
Long-Finned African Tetra
Freshwater Only
Flow Preference
✗ No overlap
Espei Rasbora (Lambchop Rasbora)
Low
Long-Finned African Tetra
High
Min Tank Volume
Combined: 200 L
Espei Rasbora (Lambchop Rasbora)
38 L
Long-Finned African Tetra
200 L
Swimming Level
Shared: 2 zones
Espei Rasbora (Lambchop Rasbora)
MiddleTop
Long-Finned African Tetra
TopMiddle
🏷️Behavior Tags
Espei Rasbora (Lambchop Rasbora)
Nano / Bite-sized (Predation Risk)Hyperactive / Fast Swimmer
Long-Finned African Tetra
Hyperactive / Fast SwimmerJumper (Lid Required)Fry PredatorAggressive Eater (Starves shy fish)
Stocking calculator

Can your tank handle Espei Rasbora (Lambchop Rasbora) and Long-Finned African 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.

Espei Rasbora (Lambchop Rasbora)
Long-Finned African Tetra
Test both in my tank

Behaviour & Temperament

Espei Rasbora (Lambchop Rasbora) is a peaceful species (1/10), while Long-Finned African Tetra is peaceful (2/10). This modest difference means Long-Finned African Tetra may occasionally assert dominance over Espei Rasbora (Lambchop Rasbora).

Espei Rasbora (Lambchop Rasbora) and Long-Finned African Tetra both frequent the Middle (Open Water) and Top (Surface) 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: Long-Finned African Tetra 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 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 5–12 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Espei Rasbora (Lambchop Rasbora) and Long-Finned African 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: Plants - Densely covered, Leaf Litter/Blackwater, Driftwood (Digestion/Hiding). Meeting these requirements will help both species thrive.

Espei Rasbora (Lambchop Rasbora) prefers Low (Still Water) flow while Long-Finned African Tetra needs High (River/Stream) flow. Consider positioning filter outlets and using baffles to create zones of different current intensity within the same tank.

Why This Pairing Needs Extra Planning in Practice

This pairing usually fails when the tank is treated like a standard mixed community and the caution flags are ignored. Espei Rasbora (Lambchop Rasbora) and Long-Finned African Tetra need extra room, more cover, and closer observation during the first few weeks so small aggression, feeding, or territory issues do not snowball into a long-term problem.

Suitable Tank Sizes

Standard aquarium sizes large enough for both Espei Rasbora (Lambchop Rasbora) and Long-Finned African Tetra.

Show 5 more tank sizes

Frequently Asked Questions

Can Espei Rasbora (Lambchop Rasbora) and Long-Finned African 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 Espei Rasbora (Lambchop Rasbora) and Long-Finned African 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 Espei Rasbora (Lambchop Rasbora) and Long-Finned African Tetra 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 Espei Rasbora (Lambchop Rasbora) or Long-Finned African Tetra aggressive?

Espei Rasbora (Lambchop Rasbora) is peaceful (1/10) and Long-Finned African Tetra is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Espei Rasbora (Lambchop Rasbora) and Long-Finned African 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.

Editorial Review

Guidarium Editorial Desk

Reviewed against Guidarium care, stocking, and compatibility standards. Read the editorial policy.

Last reviewed
May 6, 2026
Last updated
May 6, 2026
Issues or corrections?
Contact the editorial team

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