Can Long-Finned African Tetra and Mottled Loach Live Together?
Yes, Long-Finned African Tetra and Mottled Loach 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
Can your tank handle Long-Finned African Tetra and Mottled Loach?
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.
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Behaviour & Temperament
Long-Finned African Tetra is a peaceful species (2/10), while Mottled Loach is generally mild-mannered (4/10). This modest difference means Mottled Loach may occasionally assert dominance over Long-Finned African Tetra.
In terms of spatial distribution, Long-Finned African Tetra prefers the Top (Surface) and Middle (Open Water) zones, whereas Mottled Loach 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: 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 22°C and 26°C. Aim for the midpoint of this range (around 24.0°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.
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Tank Setup
To house Long-Finned African Tetra and Mottled Loach 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: Driftwood (Digestion/Hiding), Sand (Sifters), Smooth Gravel (Sensitive Barbels). 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 Long-Finned African Tetra and Mottled Loach.
55 Gallon Standard
60 Gallon Breeder
75 Gallon Standard
90 Gallon Standard
125 Gallon Standard
150 Gallon High
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Frequently Asked Questions
Can Long-Finned African Tetra and Mottled Loach live together?
Yes. Long-Finned African Tetra and Mottled Loach are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.
What size tank do Long-Finned African Tetra and Mottled Loach 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 Long-Finned African Tetra and Mottled Loach together?
Keep the aquarium between 22°C and 26°C. A target of around 24.0°C sits comfortably within both species' preferred ranges.
Are Long-Finned African Tetra or Mottled Loach aggressive?
Long-Finned African Tetra is peaceful (2/10) and Mottled Loach is generally mild-mannered (4/10). Their similar temperaments generally lead to a peaceful coexistence.
What pH do Long-Finned African Tetra and Mottled Loach 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.
How do I manage Mottled Loach's territorial behaviour?
Provide line-of-sight breaks using rocks, driftwood, and dense planting. A larger tank gives Mottled Loach space to claim a territory without encroaching on the other fish's area. Adding décor that divides the tank into distinct zones works especially well.
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