Overview
The Payara is a striking and potentially aggressive fish that requires a large, well-maintained tank. They are known for their silver coloration and dark spots. Payara are not suitable for beginners due to their high aggression and specific care requirements.
Scientific Classification
| Rank | Classification |
|---|---|
| Family | Cynodontidae |
| Genus | Hydrolycus |
| Species | Hydrolycus scomberoides |
| Water type | freshwater |
Natural Habitat
Native to the Amazon River basin, Payara inhabit the slow-moving waters of rivers and streams.
Appearance
Payara have a sleek, elongated body with a shiny silver coloration and distinct dark spots along their sides.
Behavior
Payara are known to be highly territorial and may become aggressive towards other fish. They are not recommended for community tanks.
| Trait | Value |
|---|---|
| Temperament | aggressive |
| Schooling | No |
| Activity level | high |
Water Requirements
| Parameter | Ideal Range | Notes |
|---|---|---|
| Temperature | 24–28°C (75–82°F) | Use a reliable adjustable heater |
| pH | 6–7 | Avoid sudden swings |
| Hardness (GH) | 5-15 dGH dGH | Soft to moderately hard |
| Ammonia | 0 ppm | Any detectable ammonia signals a problem |
| Nitrite | 0 ppm | Toxic even at low levels |
| Nitrate | <20 ppm | Manage through regular partial water changes |
| Min. tank | 500L (132 gal) | Larger tanks are easier to keep stable |
Interesting Facts
- Payara are known for their impressive size and are one of the largest species of piranha.
- They are known to hunt in groups and have been observed preying on larger fish and even other piranhas.
- Payara are known to leap out of the water to catch prey, a behavior known as 'breaching'.
📋 Full Care Guide
Ready to set up a tank for your Payara? The complete care guide covers tank setup, feeding schedule, common diseases, tank mates, and breeding.
Read Payara Care Guide →Related Species
Related Species & Guides
This species profile was reviewed for biological accuracy and practical aquarium care guidance. For suspected illness or disease, test your water parameters first and consult an aquatic veterinarian if symptoms persist.