Blue Line Rasbora
Rasbora sarawakensis
Blue Line Rasbora (Rasbora sarawakensis) — Easy care, Peaceful, under Rasbora. Minimum tank in the app: 15.9 US gal min; aim for 72–82°F and pH 6–7.5. Details below match the app.
Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.
Natural distribution
Southeast Asia
- East & Southeast Asia
Regional colours match the stocking calculator’s origin map.
Blue Line Rasbora Tank Setup
Plan for at least 15.9 US gal min of water—that is the minimum in our database for a workable setup, not a challenge to crowd fish. Aim to hold 72–82°F and pH 6–7.5 without daily drama. These fish use the Mid zone most, so put wood, plants, or open water there accordingly.
What Do Blue Line Rasboras Eat?
We record diet as Omnivore (micro foods). Offer a few food types that match—dry, frozen, or gel—and swap now and then. One flake every day for a year is how dull color and gut trouble creep in.
Blue Line Rasbora Tank Mates
Temperament in the data: Peaceful. Hardy and active schooling rasbora. Keep in groups of 8+. Plug your full stock list into the stocking calculator—single-species compatibility scores are hints, not a whole-tank verdict.
Are Blue Line Rasboras Good for Beginners?
Often a sensible first fish once the tank is cycled and you are willing to test water sometimes. Skip the impulse buy on the same day you set up the tank.
Building a community? Run the full list through the stocking calculator before you add anything else.
Similar fish to consider
Log tests and reminders in App-aquatic—free, same data you see here.