Keeping fishes as pets is a calming and rewarding experience. While many popular aquarium fishes live only for a few years, did you know that there are certain species that can live for decades? Yes, you read that right! From Goldfish to Koi fish, certain freshwater and marine fishes are known for their incredibly long lifespans. In fact, a few species have also lived for nearly 50, 100, or even close to 200 years under ideal conditions! Here we list some such fish longest living aquarium fish:
