B

Blackline Rasbora

Rasbora borapetensis

VS
O

Opaline Gourami

Trichogaster trichopterus (Opaline variant)

Choosing between Blackline Rasbora and Opaline Gourami? Both are excellent choices, but they have different care requirements and temperaments. Use the detailed comparison below to make an informed decision based on your experience level, tank size, and community goals.

Blackline Rasbora

Rasbora borapetensis
VS

Opaline Gourami

Trichogaster trichopterus (Opaline variant)
These fish can typically coexist peacefully
Common Name
Blackline Rasbora
Opaline Gourami
Scientific Name
Rasbora borapetensis
Trichogaster trichopterus (Opaline variant)
Type
Freshwater
Freshwater
Difficulty
Beginner Friendly
Beginner Friendly
Temperament
Peaceful
Semi-Aggressive
Minimum Tank
20 gallons
30 gallons
Recommended Tank
30 gallons
40 gallons
Temperature
72°F - 79°F
72°F - 82°F
pH Range
6 - 7.5
6 - 8
Max Size
2.5 inches
6 inches
Lifespan
4-6 years
4-6 years
Diet
High-quality flake food, Small pellets, Frozen bloodworms, Brine shrimp
Flakes, Pellets, Frozen foods, Vegetables

Blackline Rasbora

✓ Good For

  • Community tanks
  • Beginners
  • Schooling displays

Opaline Gourami

✓ Good For

  • Community tanks
  • Beginners
Explore More

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