From The Aquarium Wiki
How long a healthy fish can generally live in captivity given proper care and water conditions.
Tips for a long life
- Feed high protein food during its first year as a young animal requires lots of essential minerals during its initial growing period.
- Feed good quality food with plenty of on-going variation. This ensures it gets all its minerals and amino acids.
- Ensure it is kept within appropriate water parameters for its species. i.e. temperature, pH, GH, salt levels.
- Consider adding bogwood or other similar organic material to the tank. This has shown to promote healthier animals.
- Ensure low stress. A constantly alarmed animal has a short life. Provide a covered backdrop to the tank, provide hiding places. Look out for bullying from other co-inhabitors.
- Look out for wounds on the animal. These maybe caused by ornaments or other animals.
- Age of freshwater fish (German)
- Age of freshwater fish - Google English version
- PFK article - How long do your fish live for?
- University of Glasgow research shows fluctuating diet increases risk of sudden death and a shortened life