Phoenix Rasbora
Very small shoaling fish that prefers calm, shaded, soft-water setups.
Planning your aquarium
The library starting point is 10+ US gallons. Plan for the approximate 0.8-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.
- Favor naturally appropriate soft-water conditions rather than abrupt chemical adjustments.
Very small shoaling fish that prefers calm, shaded, soft-water setups.
Food and feeding
Food options: Nano pellets, Powdered flakes, Baby 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 Angelfish: Tiny phoenix rasboras may be eaten by adult angelfish.
- Avoid or investigate Golden Wonder Killifish: Phoenix rasboras are small enough to be eaten.
These are selected rule-based cautions, not a complete compatibility assessment.