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The Red Irian Rainbowfish (Glossolepis incisus), particularly the 'Red Irian' variant, is a spectacular and highly sought-after species renowned for its dazzling coloration and active nature. Males, especially when mature and during display, exhibit a breathtaking, intense crimson to fiery orange-red over much of their torpedo-shaped body, often with iridescent scales that shimmer under proper lighting. Females are typically more subdued, displaying a pleasant silvery-orange hue. Growing to an impressive 5-6 inches, these are not your average small community fish. They thrive in well-maintained aquariums of 55 gallons or more, necessitating ample swimming space as they are constantly on the move. A densely planted tank with open areas is ideal, providing both cover and room to dart about. Being peaceful, schooling fish, Red Irian Rainbowfish should always be kept in groups of at least six individuals to encourage their natural shoaling behavior, reduce stress, and allow for the magnificent male-on-male sparring displays. Water parameters should lean towards hard and alkaline (pH 7.0-8.0, GH 10-20) with temperatures between 74-82°F (23-28°C). They are omnivorous and will eagerly accept a varied diet of high-quality flakes, pellets, frozen foods like bloodworms and brine shrimp, and live foods. Their vibrant color is best maintained with a diet rich in carotenoids. A tight-fitting lid is essential, as like many rainbowfish, they are prone to jumping. Given their size and activity, they make an excellent center-piece fish for a large, active community aquarium, coexisting well with other similarly sized, peaceful species.