Phoenix Rasbora
The Phoenix Rasbora, scientifically known as Boraras merah, is one of the most vibrant and sought-after nano rasboras in the freshwater aquarium hobby. Famous for its fiery red coloration, compact size, and peaceful schooling behavior, this fish is perfect for nano tanks, shrimp aquariums, and heavily planted aquascapes.
Native to blackwater peat swamps and slow-moving streams of Southeast Asia, Boraras merah thrives in soft, acidic water rich in tannins and plant cover. This natural habitat explains its preference for warm temperatures, gentle filtration, and densely planted tanks.
| Specifications |
|---|
| Scientific Name: Boraras merah |
| Size: 1.5 to 2.5 cm (0.6 to 1 inch) |
| Temperature: 22–28°C (72–82°F) |
| Water pH: 5.5–6.5 |
| Water Hardness: Soft (dGH 1–3) |
| Compatibility: Peaceful, schools well with other small fish |
| Adult Lifespan: 3–5 years |
FAQ
What kind of water conditions does the Phoenix Rasbora prefer?
The Phoenix Rasbora prefers soft, acidic water with a pH between 5.5 and 6.5, and water hardness of 1–3 dGH. It thrives in environments rich in tannins, such as those found in blackwater peat swamps.
Can Phoenix Rasboras live with shrimp?
Yes, Phoenix Rasboras are peaceful and can coexist well with shrimp in a well-planted tank, as long as there is sufficient hiding space and plant cover.
How many Phoenix Rasboras should I keep?
It is best to keep them in groups of at least 6 to ensure natural schooling behavior and reduce stress.
Faith Davidson –
The Phoenix Rasboras are stunning with their bright red color. I kept them in a 10-gallon tank with java fern and moss. They stay active and don’t stress the shrimp. Water parameters were adjusted to soft, acidic conditions, and they’ve been thriving for over six months.
Anna Mathis –
Great addition to my planted tank. They school beautifully and are very calm. I had to adjust the pH slightly lower than standard, but once I did, they settled in well. Not the most active fish, but very peaceful.
Paul Young –
I bought these for a new aquascape project. The color is vivid and they look amazing in the dim lighting. I planted plenty of moss and driftwood, which they love. They don’t need much space and are easy to maintain.