# Marlboro Yellow Discus The Marlboro Yellow Discus is a disc-shaped fish with a distinctive golden-yellow coloration that deepens toward the head and gill plates, creating a natural gradient across its body. Native to the blackwater tributaries of the Amazon basin, this variety has been selectively bred to emphasize the warm yellow tones while maintaining the species' characteristic vertical striping. What sets discus fish apart from other cichlids is their laterally compressed, nearly circular body shape?an adaptation that allows them to navigate dense aquatic vegetation and exploit tight spaces in their native environment. In the aquarium, these fish are methodical and observant rather than flashy. They spend considerable time drifting through mid-water columns, often pausing to inspect d‚cor or watch their surroundings with an almost contemplative demeanor. Discus are social fish that genuinely benefit from the presence of their own kind; keeping them in groups of 3-5 encourages more natural behaviors and reduces stress-related color fading. They respond to routine and will quickly learn feeding schedules, often gathering at the surface or approaching the glass when they recognize their keeper. This combination of intelligence and social nature makes them engaging long-term companions rather than background inhabitants. Success with this species hinges on water stability and temperature maintenance?the narrow range of 82-86øF is non-negotiable, as discus are highly sensitive to temperature fluctuations. A 55-gallon minimum provides adequate space, but larger tanks (75+ gallons for groups) are far more forgiving of parameter swings. They thrive alongside peaceful characins, tetras, and corydoras catfish, but they're incompatible with aggressive or fin-nipping species. Live plants enhance their environment and help maintain water quality, while driftwood and tall d‚cor pieces give them natural resting spots. With proper care, these fish consistently reach 10-12 years, making them a genuine long-term investment in your aquarium.