Clown Rasbora (Rasbora kalochroma) is a small, peaceful freshwater fish known for its striking body coloration and playful nature. Its vibrant red-orange body with distinctive black markings makes it a beautiful addition to community aquariums.
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Clown Rasbora (Rasbora kalochroma) is a small, peaceful freshwater fish known for its striking body coloration and playful nature. Its vibrant red-orange body with distinctive black markings makes it a beautiful addition to community aquariums.
Slender, laterally compressed body with a bright red-orange base color and distinctive black blotches along the body. Fins are mostly transparent with subtle red or orange hints. Males are slightly more slender and vividly colored; females are rounder and paler.
4–6 years with proper care
Omnivorous; feeds on high-quality flakes, micro pellets, frozen foods, and live foods such as daphnia, brine shrimp, and micro worms. Occasional blanched vegetables like zucchini or spinach can supplement their diet and enhance coloration.
Clown Rasboras are excellent for community aquariums due to their peaceful nature, vibrant colors, and active schooling behavior. They bring charm, activity, and color to planted tanks.
Beginner to Intermediate – hardy, but prefers stable water conditions and schooling.
15+ gallons (for a small school)
6.0 to 7.5
2–15 dGH
72–79°F (22–26°C)
1.5 inches
Other small Rasboras, Harlequin Rasboras, small tetras, dwarf gouramis, peaceful danios. Avoid aggressive or large species.
Large, aggressive, or fin-nipping species that may stress or harm them.
Rasbora kalochroma
Cyprinidae
Southeast Asia – Indonesia; shallow streams and rivers with dense vegetation.
Highly social; best kept in schools of 6 or more. Peaceful and compatible with other small community fish.
Feed 2–3 times daily with flakes, micro pellets, frozen/live foods. Occasionally supplement with finely chopped or blanched vegetables for optimal health and coloration.
Egg-scatterer; deposits eggs among fine-leaved plants or spawning mops. Adults do not guard eggs. Condition males and females with protein-rich live foods before spawning. Fry feed on infusoria or newly hatched brine shrimp.
pH: 6.0–7.5, Temperature: 72–79°F (22–26°C), Hardness: 2–15 dGH, Ammonia/Nitrite: 0 ppm, Nitrate: <20 ppm
Sensitive to poor water quality; prone to stress, ich, and bacterial infections if water parameters fluctuate. Maintain clean water, stable conditions, and appropriate school size.
Peaceful, active, and social. Best kept in schools of 6 or more to encourage natural schooling behavior. Compatible with other small, non-aggressive community fish.
Native to Southeast Asia, mainly Indonesia, Clown Rasboras inhabit slow-moving streams and rivers with dense vegetation. Adults reach up to 1.5 inches. They thrive in planted tanks with moderate water flow and open swimming areas. Ideal for beginner and intermediate aquarists, they are hardy, peaceful, and show vibrant coloration when kept in proper school sizes.