Can Black Neon Tetra and Dojo Loach (Weather Loach) Live Together?

🟢Ideal Tank Mates

Yes, Black Neon Tetra and Dojo Loach (Weather 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 240 litres is recommended.


At a Glance

Black Neon Tetra

Hyphessobrycon herbertaxelrodi

Dojo Loach (Weather Loach)

Misgurnus anguillicaudatus

🐠Family Group
Black Neon Tetra
Characins
Dojo Loach (Weather Loach)
Loaches
Temperament
Black Neon Tetra
Peaceful (1/10)
Dojo Loach (Weather Loach)
Peaceful (2/10)
Temperature
✓ Compatible
Black Neon Tetra
23–28°C
Dojo Loach (Weather Loach)
10–24°C
pH Range
✓ Compatible
Black Neon Tetra
5–7.5
Dojo Loach (Weather Loach)
6.5–8
Hardness (dGH)
✓ Compatible
Black Neon Tetra
1–15
Dojo Loach (Weather Loach)
5–15
Water Type
✓ Compatible
Black Neon Tetra
Freshwater Only
Dojo Loach (Weather Loach)
Freshwater Only
Flow Preference
✓ Compatible
Black Neon Tetra
Moderate
Dojo Loach (Weather Loach)
Moderate
Min Tank Volume
Combined: 240 L
Black Neon Tetra
54 L
Dojo Loach (Weather Loach)
200 L
Swimming Level
✓ Different zones
Black Neon Tetra
MiddleTop
Dojo Loach (Weather Loach)
Bottom
🏷️Behavior Tags
Black Neon Tetra
Hyperactive / Fast SwimmerNano / Bite-sized (Predation Risk)
Dojo Loach (Weather Loach)
Digger (Disturbs Substrate)Jumper (Lid Required)Hyperactive / Fast SwimmerSnail EaterPlant Destroyer

Behaviour & Temperament

Black Neon Tetra is a peaceful species (1/10), while Dojo Loach (Weather Loach) is peaceful (2/10). This modest difference means Dojo Loach (Weather Loach) may occasionally assert dominance over Black Neon Tetra.

In terms of spatial distribution, Black Neon Tetra prefers the Middle (Open Water) and Top (Surface) zones, whereas Dojo Loach (Weather 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: Dojo Loach (Weather Loach) 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 24°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 5–15 dGH. Regular testing will ensure conditions stay within this range. An aquarium test kit is recommended for monitoring.

Tank Setup

To house Black Neon Tetra and Dojo Loach (Weather Loach) together, plan for an aquarium of at least 240 litres with a minimum length of 120 cm. This accounts for the larger species' space requirements with an additional 20 % buffer to reduce territorial tension.

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: Plants - Densely covered, Driftwood (Digestion/Hiding), Leaf Litter/Blackwater, Sand (Sifters). Meeting these requirements will help both species thrive.

Note a potential conflict in setup requirements: Dojo Loach (Weather Loach) is a plant destroyer, which conflicts with Black Neon Tetra's requirement for live plants. Compromise where possible or prioritise the more critical need.

Both species do well with moderate (standard) water movement, so a standard filtration setup rated for the tank volume should suffice.

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Frequently Asked Questions

Can Black Neon Tetra and Dojo Loach (Weather Loach) live together?

Yes. Black Neon Tetra and Dojo Loach (Weather Loach) are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Black Neon Tetra and Dojo Loach (Weather Loach) need?

A minimum of 240 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 Black Neon Tetra and Dojo Loach (Weather Loach) together?

Keep the aquarium between 23°C and 24°C. A target of around 23.5°C sits comfortably within both species' preferred ranges.

Are Black Neon Tetra or Dojo Loach (Weather Loach) aggressive?

Black Neon Tetra is peaceful (1/10) and Dojo Loach (Weather Loach) is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Black Neon Tetra and Dojo Loach (Weather Loach) 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.


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