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WebDec 19, 2016 · The majority of common tropical fish live for an average of three to five years, while goldfish are among those living the longest, potentially up to 20 years. Koi, who are cousins of the goldfish, can live … WebApr 12, 2024 · Tetra Lifespan. Tetras, the small, colorful fish popular among aquarium hobbyists, have a lifespan of approximately 3 to 5 years, depending on the species and environmental conditions they are kept in. Factors that can impact a tetra’s lifespan include water quality, temperature, diet, and overall care. It is essential to ensure that the ... WebFeb 28, 2024 · Average Life Expectancy Of Common Aquarium Fish Species. Goldfish. The humble common goldfish has a potential lifespan of up to 40 years. This makes it one of … flowers wellington delivery