I love fish. I have 3 tanks now, biggest is a 125 acrylic corner pentagon. I have an Oscar, spotted red severum, 5 clown loaches, 3 blue botia loaches, two big ass poop monster plecos, 4 silver dollars(piranha types), 4 black skirt tetras, a mean and now solitary synodontis eupterus USD catfish who is sweet but just can't help but eat all of her friends. There are a few other little guys like hybrid fry from guppies and balloon molly's that have lived, a pair of real guppies and one last shrimp that is still evading my Oscar like a ninja. Oh and a little corydora catfish with the other little guys by themselves.
Last but not least, the fish that started it all: 3 goldfish that are the toughest fish I have ever owned. Won them tiny for my kids at the county fair. My biggest comet (chuck Norris, the one who can survive being dry on the carpet for hours overnight and live no problem) is 5" and 4 years old. Not the biggest fish, but the toughest from what I've seen.