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STATUS: COMPATIBLE ⬌ MATRIX CORRELATION INDEX

Can you keep Cardinal Tetra and Kuhli Loach together?

Algorithmically generated environmental and behavioral compatibility report.

Cardinal TetraParacheirodon axelrodi
mid Layerpeaceful
compatible
Kuhli LoachPangio semiperfecta
bottom Layerpeaceful
COMPATIBLE

Algorithmic Assessment

Impeccable water parameter intersection. Both Kuhli Loach and Cardinal Tetra are peaceful community species. They share overlapping temperature bounds (73-81°F) and safe pH ranges (6.0-6.2).

Scientific Parameter Comparison

Cross-reference water chemistry, temperature range envelopes, and physical dimensions of Cardinal Tetra and Kuhli Loach.

Parameter MetricCardinal TetraKuhli LoachCalculated Overlap
Temperature Range73°F – 81°F73°F – 86°F73°F – 81°F
pH Chemistry4.6 – 6.26.0 – 7.06.0 – 6.2
Min. Tank Capacity10 Gallons15 Gallons15 Gallons (Minimum)
Aquatic Strata ZonemidbottomSeparated Layers
Adult Size (Max)2.0" (5 cm)4.0" (10 cm)Ratio: 1 : 2.0

✓ Environmental Harmony Assessment

Excellent! Both Cardinal Tetra and Kuhli Loach are compatible. They occupy different niches and swimming levels (mid vs bottom) or peacefully share parameters.

⚔️ Do Cardinal Tetra and Kuhli Loach Fight?

Both Cardinal Tetra and Kuhli Loach are peaceful community species. They share similar behavioral temperaments, resulting in a harmonious environment with virtually no risk of territorial fighting or harassment.

🍽️ Swimming Layers & Feeding Competition

To satisfy their dietary requirements, offer a varied feeding schedule. Sinking pellets or wafers are ideal for bottom dwellers, while floating flakes or micro-granules support mid and top dwellers. The Cardinal Tetra occupies the mid layer, while the Kuhli Loach occupies the bottom layer. This separation of swimming zones naturally minimizes direct interactions and reduces competition during feeding times.

📏 Size Difference & Predation Threat

Both species are closely matched in physical dimensions, with Cardinal Tetra growing to 2.0 inches and Kuhli Loach reaching 4.0 inches. This size balance ensures neither species holds a physical dominance advantage.

Scientific NameParacheirodon axelrodi
Min Tank Capacity10G
Aggressionpeaceful
Temp Envelope73°F - 81°F
pH Chemistry4.6 - 6.2
Kuhli Loachbottom Layer
Scientific NamePangio semiperfecta
Min Tank Capacity15G
Aggressionpeaceful
Temp Envelope73°F - 86°F
pH Chemistry6.0 - 7.0

Chemistry & Habitat Analysis

Temp Envelope
73°F - 81°F
Shared temperature bounds.
pH Chemistry
6.0 - 6.2
Shared safe pH bounds.
Combined Min Tank
15 Gallons
Lowest acceptable volume.

Frequently Asked Questions: Cardinal Tetra & Kuhli Loach Compatibility

Are Cardinal Tetra and Kuhli Loach good tank mates?

Impeccable water parameter intersection. Both Kuhli Loach and Cardinal Tetra are peaceful community species. They share overlapping temperature bounds (73-81°F) and safe pH ranges (6.0-6.2).

Can you put Cardinal Tetra and Kuhli Loach in the same tank together?

Both Cardinal Tetra and Kuhli Loach are peaceful community species. They share similar behavioral temperaments, resulting in a harmonious environment with virtually no risk of territorial fighting or harassment.

What water temperature and pH parameters do Cardinal Tetra and Kuhli Loach need?

Both species require compatible parameters. Cardinal Tetra needs a temperature of 73°F to 81°F and a pH of 4.6 to 6.2. Meanwhile, Kuhli Loach needs a temperature of 73°F to 86°F and a pH of 6.0 to 7.0. Shared overlap range: 73°F–81°F temperature and 6.0–6.2 pH overlap.

What is the minimum combined tank volume required to house Cardinal Tetra and Kuhli Loach?

To successfully house both species together, the minimum baseline capacity is 15 gallons. Because both Cardinal Tetra and Kuhli Loach are peaceful community species, no extra territorial buffer volume is required.