my hubby already told ya about his piranha and his midas cichlid, both of which i met towards the end of their lives.
i had fish when i was young, we had small community tanks with fish that never lasted more than a few years, but they lived their entire lives with us. And we had koi that some of my family members still have along with their offspring.
and i fully intend.. in fact, i'm currently setting up a 240 gal tank to make sure that i have no trouble keeping the fish i have now through their entire life.
if the stories i hear about arowanas are true, my oldest grandson may inherit Pinky. But when i buy or raise an animal.. doesn't matter if it's a fish, a snake, a bird or a dog they are generally here for life, i don't throw away family members.