The lifespan of a discus fish (Symphysodon spp.) in an aquarium can vary depending on several factors, including genetics, water quality, diet, and overall care. On average, a well-maintained aquarium with proper conditions can support a discus fish for approximately 8 to 12 years. However, with exceptional care and optimal conditions, some discus fish have been known to live up to 15 years or even longer.
To ensure a longer lifespan for discus fish, it is crucial to maintain stable water parameters within their preferred range, including temperature (around 82-86°F or 28-30°C), pH (slightly acidic to neutral), and water quality (regular water changes and filtration). A balanced and nutritious diet consisting of high-quality pellets, frozen or live foods, and occasional supplements like vitamins can also contribute to their well-being.
Additionally, providing adequate space, maintaining a stress-free environment, and minimizing aggression from tank mates are essential factors for promoting the overall health and longevity of discus fish in an aquarium. Regular observation, prompt action against any health issues, and diligent care can significantly contribute to maximizing the lifespan of these beautiful and captivating fish.