Overview
The Penguin Tetra is a popular freshwater fish known for its striking black and white coloration. They are generally peaceful and can be kept in a community tank with other non-aggressive species. These tetras are moderately active and do well in tanks with plenty of swimming space. They are suitable for beginners due to their hardiness and ease of care.
Scientific Classification
| Rank | Classification |
|---|---|
| Family | Characidae |
| Genus | Thayeria |
| Species | Thayeria boehlkei |
| Water type | freshwater |
Natural Habitat
Native to the Amazon River basin in South America, the Penguin Tetra inhabits slow-moving waters with dense vegetation.
Appearance
These fish have a sleek, torpedo-shaped body with a distinct black coloration on the back and a white belly. Their eyes are a striking red.
Behavior
Penguin Tetras are not known to school and can be sensitive to changes in water parameters. They are best kept in groups of 6 or more to reduce stress.
| Trait | Value |
|---|---|
| Temperament | peaceful community fish |
| Schooling | No |
| Activity level | moderate |
Water Requirements
| Parameter | Ideal Range | Notes |
|---|---|---|
| Temperature | 22–28°C (72–82°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 | 20L (5 gal) | Larger tanks are easier to keep stable |
Interesting Facts
- They are named for their black and white coloration, resembling a penguin.
- They are known to be quite hardy and adaptable to various water conditions.
- They are often used in breeding experiments due to their reproductive ease.
📋 Full Care Guide
Ready to set up a tank for your Penguin Tetra? The complete care guide covers tank setup, feeding schedule, common diseases, tank mates, and breeding.
Read Penguin Tetra 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.