Home / Knowledge Library / Forktail Rainbowfish
Freshwater fish care guide

Forktail Rainbowfish

Freshwater aquarium livestock

Small active rainbowfish with bright yellow fins.

Starter tank20+ gal
Temperature75–82°F
pH7–8
Group guide6+

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 6. 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.

Small active rainbowfish with bright yellow fins.

Food and feeding

Food options: Micro pellets, Fine flakes, Baby brine shrimp.

Use appropriately sized, complete staple foods and rotate suitable foods for variety. Feed modest portions and remove uneaten food.

Compatibility

The current rule-based checker does not list a dedicated pairing warning for this species. That does not mean every pairing is safe; review temperament, adult size, diet, habitat and water requirements.