Scissortail Rasbora (Rasbora trilineata) in a planted freshwater aquarium
Peaceful Easy Schooling

Scissortail Rasbora

Rasbora trilineata

Minimum Tank

30 Gallons

Adult Size

6 inches

Temperature

73-78°F (23-26°C)

pH Range

6.0-7.5

Lifespan

6 years

School Size

6+ fish

About Scissortail Rasbora

The scissortail rasbora is an elegant, moderately sized fish from the rivers and floodplains of Malaysia, Borneo, and Sumatra. It gets its name from the deeply forked tail fin with bold black and white markings that open and close like scissors as the fish swims, creating a distinctive flickering effect. The body is sleek and silvery with a subtle golden lateral line. Scissortail rasboras are active, fast-swimming schoolers that need ample horizontal space and create a beautiful display of coordinated movement. At up to 6 inches, they are among the largest rasbora species and serve as a mid-water centerpiece school for larger community aquariums.

Care Requirements

Tank Setup

  • • Minimum 30-gallon tank required
  • • Temperature: 73-78°F (23-26°C)
  • • pH: 6.0 - 7.5
  • • Category: Rasbora

Diet & Feeding

  • • Diet type: Omnivore
  • • Feed 1-2 times daily
  • • Varied diet recommended

Tank Mate Compatibility

Compatible With

🐟 Larger Tetras
🐟 Barbs
🐟 Gouramis
🐟 Rainbowfish

Avoid Keeping With

⚠️
Aggressive Fish Not compatible
⚠️
Very Small Fish Not compatible

Care Tips

Expert Tips

Scissortail rasboras need a spacious tank of at least 40 gallons due to their active swimming and larger adult size of up to 6 inches. Keep them in schools of at least six for the best schooling behavior. They prefer slightly soft, acidic to neutral water at 73-77°F with moderate flow. Provide plenty of open swimming space with planted areas along the sides and back. They are peaceful and make excellent companions for other medium-sized community fish. A tight-fitting lid is essential, as they are excellent jumpers. Feed quality flakes and pellets supplemented with frozen foods. They are generally hardy once established but may be sensitive during initial acclimation.

Quick Facts

114L

Min Tank (30gal)

15cm

Adult Size (6")

6yr

Lifespan

6+

Min School

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Frequently Asked Questions

What size tank does a Scissortail Rasbora need?

A Scissortail Rasbora needs a minimum tank size of 30 gallons (114 litres). They should be kept in schools of at least 6.

What water parameters does a Scissortail Rasbora need?

Scissortail Rasbora thrive in water between 73-78°F (23-26°C) with a pH of 6.0-7.5.

Are Scissortail Rasbora easy to care for?

Scissortail Rasbora are considered easy to care for. They are peaceful fish with a lifespan of about 6 years.

How big do Scissortail Rasbora get and what do they eat?

Scissortail Rasbora reach about 6 inches and are omnivores. Scissortail rasboras need a spacious tank of at least 40 gallons due to their active swimming and larger adult size of up to 6 inches. Keep them in schools of at least six for the best schooling behavior. They prefer slightly soft, acidic to neutral water at 73-77°F with moderate flow. Provide plenty of open swimming space with planted areas along the sides and back. They are peaceful and make excellent companions for other medium-sized community fish. A tight-fitting lid is essential, as they are excellent jumpers. Feed quality flakes and pellets supplemented with frozen foods. They are generally hardy once established but may be sensitive during initial acclimation.