Can Blood Parrot Cichlid live with Serpae Tetra?
High risk due to water mismatch, aggression, or predation.
Why Blood Parrot Cichlid and Serpae Tetra Don't Make an Easy Pair
The size gap is 6.0" — Blood Parrot Cichlid (8.0") and Serpae Tetra (2.0"). A fish that fits in another fish's mouth will eventually end up there.
Blood Parrot Cichlid
Amphilophus hybrid (crossbreed)
| Adult Size: | 8.0" |
| Temperament: | semi-aggressive |
| Min Tank: | 30 gal |
| Temperature: | 76-82°F |
| pH Range: | 6.5-7.5 |
Serpae Tetra
Hyphessobrycon eques
| Adult Size: | 2.0" |
| Temperament: | semi-aggressive |
| Min Tank: | 20 gal |
| Temperature: | 72-79°F |
| pH Range: | 5.5-7.5 |
Water Parameter Overlap
| Parameter | Blood Parrot Cichlid | Serpae Tetra | Overlap |
|---|---|---|---|
| Temperature | 76-82°F | 72-79°F | 3°F ✓ |
| pH | 6.5-7.5 | 5.5-7.5 | 1.0 ✓ |
Compatibility Breakdown
Temperament Match: semi-aggressive + semi-aggressive. Semi-aggressive → watch territory and feeding.
⚠️ Size Predation Risk: Blood Parrot Cichlid (8.0") vs Serpae Tetra (2.0"). A 6.0" gap — the larger fish will view the smaller fish as food.
Score: 30.0/100 (GOOD ≥80, CAUTION ≥50, RISKY <50).
🔧 Tank Setup Requirements (for Both)
- Minimum tank: 30 gallons — sized for the larger fish in the pair.
- Temperature: keep it between 76°F and 79°F.
- pH: maintain 6.5 – 7.5.
- Hiding spots: essential for Blood Parrot Cichlid — caves, plants, or driftwood to retreat when feeling stressed.
- Water changes: 25% weekly minimum. Two species mean double the bioload.
🔧 Tank Stocking Calculator
Enter tank size to calculate safe stocking levels:
Recommended Equipment
Based on tank size 30+ gallons:
Floating pellet food for blood parrot cichlids
Explore Related Checks
See what else works with these fish:
⚠️ Common Reasons This Pairing Fails in Practice
- Narrow temperature margin: Only 3°F of overlap means a stuck heater or seasonal temperature swing can push one species out of its comfort zone.
- Size-based predation: The 6.0" size gap means the larger fish may eat the smaller one once it grows to full size. This is not fixable with more hiding spots.
- Double semi-aggressive: Two territorial species in the same tank creates competition for prime real estate. Provide distinct territories or expect fin-nipping and chasing.
- Overcrowding: Even compatible species fail in tanks that are too small. Double the species means double the bioload — 25% weekly water changes are the minimum.
- Inadequate acclimation: Adding both species on the same day without quarantine is a common mistake. Always drip-acclimate new arrivals and quarantine for 2–4 weeks.
Tools & Resources
Accuracy note: This tool uses expert rules + FishBase.org data. Individual fish behavior varies — a semi-aggressive individual Blood Parrot Cichlid may act differently from its species average. Always observe, quarantine new arrivals for 2-4 weeks, and avoid overcrowding. If a pairing says CAUTION, start with a smaller group and a lid.