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STATUS: INCOMPATIBLE ⬌ MATRIX CORRELATION INDEX

Can you keep Cardinal Tetra and Electric Yellow Cichlid together?

Algorithmically generated environmental and behavioral compatibility report.

Cardinal TetraParacheirodon axelrodi
mid Layerpeaceful
✕
incompatible
Electric Yellow CichlidLabidochromis caeruleus
mid Layeraggressive
INCOMPATIBLE

Algorithmic Assessment

Water acidity (pH) parameters clash. Electric Yellow Cichlid prefers a pH of 7.8-8.6, while Cardinal Tetra requires a pH of 4.6-6.2. There is no overlapping safe pH range.

Scientific Parameter Comparison

Cross-reference water chemistry, temperature range envelopes, and physical dimensions of Cardinal Tetra and Electric Yellow Cichlid.

Parameter MetricCardinal TetraElectric Yellow CichlidCalculated Overlap
Temperature Range73°F – 81°F75°F – 82°F75°F – 81°F
pH Chemistry4.6 – 6.27.8 – 8.6No Overlap (Mismatch: 1.6)
Min. Tank Capacity10 Gallons50 Gallons50 Gallons (Minimum)
Aquatic Strata ZonemidmidShared Zone (Layer Conflict)
Adult Size (Max)2.0" (5 cm)5.0" (13 cm)Ratio: 1 : 2.5

⚠ Physiological Mismatch Report

Our stocking engine calculations indicate that putting these two species in the same tank causes acute physiological strain. Below are the calculated parameters that violate safe cohabitation ranges:

Acidity/pH Gap1.6 pH difference

Cardinal Tetra thrives in pH 4.6-6.2, while Electric Yellow Cichlid needs pH 7.8-8.6.

Behavioral & Environmental Compatibility

⚔️ Do Cardinal Tetra and Electric Yellow Cichlid Fight?

Behavioral analysis indicates a severe compatibility clash. The Electric Yellow Cichlid is known for highly territorial and aggressive behaviors. In a shared environment, it is highly likely to harass, injure, or stress the more peaceful Cardinal Tetra, making them completely incompatible cohabitants.

🍽️ 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. Both species reside in the mid layer. Feeding them simultaneously in different corners of the tank is highly recommended to distribute food and prevent any resource competition in their shared vertical zone.

📏 Size Difference & Predation Threat

There is a moderate size difference. The Electric Yellow Cichlid (5.0 inches) is noticeably larger than the Cardinal Tetra (2.0 inches). While not an immediate predation threat under normal circumstances, ensure the smaller specimens are not small enough to be eaten and have plenty of shelter.

Safe Tankmate Alternatives for Cardinal Tetra

Since the pairing between Cardinal Tetra and Electric Yellow Cichlid is flagged as incompatible, here are 3 peaceful community tankmates that share a flawless compatibility profile with Cardinal Tetra and match similar water parameters:

Scientific NameParacheirodon axelrodi
Min Tank Capacity10G
Aggressionpeaceful
Temp Envelope73°F - 81°F
pH Chemistry4.6 - 6.2
Scientific NameLabidochromis caeruleus
Min Tank Capacity50G
Aggressionaggressive
Temp Envelope75°F - 82°F
pH Chemistry7.8 - 8.6

Chemistry & Habitat Analysis

Temp Envelope
75°F - 81°F
Shared temperature bounds.
pH Chemistry
No Overlap
Acidity requirements clash.
Combined Min Tank
50 Gallons
Lowest acceptable volume.

Frequently Asked Questions

Are Cardinal Tetra and Electric Yellow Cichlid good tank mates?

Water acidity (pH) parameters clash. Electric Yellow Cichlid prefers a pH of 7.8-8.6, while Cardinal Tetra requires a pH of 4.6-6.2. There is no overlapping safe pH range.

Can you put Cardinal Tetra and Electric Yellow Cichlid in the same tank together?

Behavioral analysis indicates a severe compatibility clash. The Electric Yellow Cichlid is known for highly territorial and aggressive behaviors. In a shared environment, it is highly likely to harass, injure, or stress the more peaceful Cardinal Tetra, making them completely incompatible cohabitants.

What water temperature and pH parameters do Cardinal Tetra and Electric Yellow Cichlid 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, Electric Yellow Cichlid needs a temperature of 75°F to 82°F and a pH of 7.8 to 8.6. Shared overlap range: 75°F–81°F temperature and No safe pH overlap overlap.

What is the minimum combined tank volume required to house Cardinal Tetra and Electric Yellow Cichlid?

To successfully house both species together, a baseline of 50 gallons is required. However, because the setup includes territorial behavior from Electric Yellow Cichlid (aggressive), we recommend an adjusted minimum tank volume of at least 70 gallons (adding a 20-gallon safety buffer) to establish separate visual boundaries and minimize stress.

Do Cardinal Tetra and Electric Yellow Cichlid occupy the same swimming layer?

Both species predominantly dwell in the mid layer. Sharing the exact same vertical zone increases the risk of mid-water open swimming space density and visual boundary conflicts. You must ensure you have adequate decorations, hiding spots, and line-of-sight breaks to mitigate friction.