Description
The Banded Rainbowfish (scientific name: Melanotaenia trifasciata) is a captivating rainbow fish species featuring iridescent blue, yellow, red, and green tones, highlighted by a bold horizontal stripe. Adult males are especially breathtaking, developing elongated fins and even more vivid colors during spawning displays. This freshwater fish thrives in community tanks and is perfect for aquarists looking to add dynamic schooling action and visual appeal to their setup.
Banded Rainbowfish can grow up to 4–5 inches (10–13 cm) in the aquarium. Their deep bodies, arching backs, and signature dark lateral band distinguish them from other Melanotaenia species. When kept in a group, their schooling behavior and color changes provide a constantly shifting display of beauty.
Known for their peaceful and active nature, Banded Rainbowfish are best kept in groups of six or more to encourage natural social interactions and vibrant coloration. They are excellent community fish, coexisting well with other peaceful species such as Tetras, Barbs, Danios, Corydoras, and even many types of shrimp and snails. Their energetic swimming and non-aggressive temperament make them a highlight in planted and open-swimming tanks.
At Splashy Fish tropical fish store, our Banded Rainbowfish for sale are raised with the utmost care. All our Rainbowfish for sale are tank-bred and acclimated for home aquariums, ensuring robust health and vibrant colors. Visit our fish store online or in person at aquarium in Virginia to explore our wide selection of high-quality freshwater fish for sale. We also offer betta fish for sale, freshwater shrimp for sale, aquarium plants for sale, and a variety of aquarium supplies.
What You Can Expect From This Fish
Bold black band and brilliant rainbow coloration
Peaceful schooling fish, ideal for community tanks
Hardy and beginner-friendly, perfect for planted aquariums
Active swimmers that bring life to the mid and upper levels of the tank
Recommended Tank Parameters
Temperature: 74°–80°F (23°–27°C)
pH: 6.5–8.0
KH: 5–15 dKH
Minimum Tank Size: 30 gallons for a school
Care Guidelines
Diet: Banded Rainbowfish are omnivores. Offer a balanced diet of high-quality flake foods, pellets, and occasional live or frozen foods such as brine shrimp, daphnia, or bloodworms to enhance their natural colors.
Social Behavior: Schooling species always keep in groups of six or more for best color and health. Peaceful with most non-aggressive freshwater fish.
Aquascaping: Use open swimming areas with dense planting around the edges. Floating plants help diffuse light and encourage more vibrant displays.
Water Quality: Maintain excellent water quality with regular water changes, a reliable filter, and stable parameters.
