Serpae Tetra
Can nip long fins, especially in small groups.
Planning your aquarium
The library starting point is 20+ US gallons. Plan for the approximate 2-inch adult size and the species' normal activity, not just its current shop size.
The library suggests a group of at least 8. Count every individual when estimating stocking and swimming room.
Mixed-species aquariums may need substantially more space. Tank length, adult behavior, filtration, and hiding spaces all matter.
Tank setup and behavior
- Include planting or cover without removing all open swimming space.
Can nip long fins, especially in small groups.
Food and feeding
Food options: Tropical flakes, Small pellets, Frozen brine shrimp.
Use appropriately sized, complete staple foods and rotate suitable foods for variety. Feed modest portions and remove uneaten food.
Tankmate cautions in the checker
- Avoid or investigate Betta Fish: Serpae tetras can repeatedly nip a betta's long fins.
- Use caution with Angelfish: Serpae tetras can nip angelfish fins.
These are selected rule-based cautions, not a complete compatibility assessment.