FishChecker

The Phoenix Rasbora, scientifically known as *Boraras merah*, is a jewel-toned nano fish that brings a vibrant splash of color and activity to smaller aquariums. Growing to a diminutive size of only about 0.8 inches (2 cm), these tiny beauties are perfect for densely planted nano tanks or tranquil desktop aquariums. Their bodies are typically an iridescent, fiery red to orange, often adorned with a distinct, slightly elongated black spot or stripe along the lateral line, sometimes edged in a shimmering blue or green. Their fins are translucent, sometimes tipped with a hint of red. Phoenix Rasboras are peaceful, shoaling fish that thrive in groups of 6-10 or more, where their schooling behavior truly shines, creating a mesmerizing, flickering display. They prefer soft, acidic water conditions, mimicking their natural blackwater habitats in Southeast Asia. A heavily planted tank with plenty of hiding spots, dark substrate, and gentle filtration will allow them to feel secure and display their best coloration. They are excellent tank mates for other peaceful nano species like chili rasboras, celestial pearl danios, or small shrimp, and are suitable for aquarists looking for a truly captivating and undemanding micro-species.