Can Black Skirt Tetra and Boeseman's Rainbowfish Live Together?

🟢Ideal Tank Mates

Yes, Black Skirt Tetra and Boeseman's Rainbowfish are ideal tank mates. Both species share compatible water parameters and peaceful temperaments, making them well-suited for a community aquarium. A minimum tank size of 240 litres is recommended.


At a Glance

Black Skirt Tetra

Gymnocorymbus ternetzi

Boeseman's Rainbowfish

Melanotaenia boesemani

🐠Family Group
Black Skirt Tetra
Characins
Boeseman's Rainbowfish
Rainbowfish
Temperament
Black Skirt Tetra
Mostly Peaceful (4/10)
Boeseman's Rainbowfish
Peaceful (2/10)
Temperature
✓ Compatible
Black Skirt Tetra
20–26°C
Boeseman's Rainbowfish
26–30°C
pH Range
✓ Compatible
Black Skirt Tetra
6–8
Boeseman's Rainbowfish
7–8.1
Hardness (dGH)
✓ Compatible
Black Skirt Tetra
3–15
Boeseman's Rainbowfish
9–19
Water Type
✓ Compatible
Black Skirt Tetra
Freshwater Only
Boeseman's Rainbowfish
Freshwater Only
Flow Preference
✓ Compatible
Black Skirt Tetra
Moderate
Boeseman's Rainbowfish
Moderate
Min Tank Volume
Combined: 240 L
Black Skirt Tetra
55 L
Boeseman's Rainbowfish
200 L
Swimming Level
Shared: 1 zone
Black Skirt Tetra
Middle
Boeseman's Rainbowfish
TopMiddle
🏷️Behavior Tags
Black Skirt Tetra
Hyperactive / Fast SwimmerFin Nipper
Boeseman's Rainbowfish
Hyperactive / Fast SwimmerAggressive Eater (Starves shy fish)Jumper (Lid Required)

Behaviour & Temperament

Black Skirt Tetra is a generally mild-mannered species (4/10), while Boeseman's Rainbowfish is peaceful (2/10). This modest difference means Black Skirt Tetra may occasionally assert dominance over Boeseman's Rainbowfish.

Black Skirt Tetra and Boeseman's Rainbowfish both frequent the Middle (Open Water) 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: Boeseman's Rainbowfish is a known jumper, so a tight-fitting lid is essential.

Water Parameters

The safe temperature window for both species falls between 26°C and 26°C. Aim for the midpoint of this range (around 26.0°C) for optimal comfort.

Both fish can tolerate a pH between 7 and 8. Maintaining a stable value within this band is more important than hitting an exact number.

For general hardness, the shared comfort zone is 9–15 dGH. Regular testing will ensure conditions stay within this range.

Tank Setup

To house Black Skirt Tetra and Boeseman's Rainbowfish 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, Plants - lighly covered. 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.

Frequently Asked Questions

Can Black Skirt Tetra and Boeseman's Rainbowfish live together?

Yes. Black Skirt Tetra and Boeseman's Rainbowfish are considered ideal tank mates. Their water parameters, temperaments, and behaviour profiles are well matched for a community aquarium.

What size tank do Black Skirt Tetra and Boeseman's Rainbowfish 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 Skirt Tetra and Boeseman's Rainbowfish together?

Keep the aquarium between 26°C and 26°C. A target of around 26.0°C sits comfortably within both species' preferred ranges.

Are Black Skirt Tetra or Boeseman's Rainbowfish aggressive?

Black Skirt Tetra is generally mild-mannered (4/10) and Boeseman's Rainbowfish is peaceful (2/10). Their similar temperaments generally lead to a peaceful coexistence.

What pH do Black Skirt Tetra and Boeseman's Rainbowfish need?

Both species overlap in the 7–8 pH range. Consistency is key — avoid sudden swings, and test regularly to stay within this window.

Will Black Skirt Tetra nip Boeseman's Rainbowfish's fins?

Black Skirt Tetra is a known fin nipper. If Boeseman's Rainbowfish has long or flowing fins, there is a real risk of fin damage. Keeping Black Skirt Tetra in a larger group can help redirect nipping behaviour toward conspecifics.


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