I've always been wondering, there are so many people that have kept so many different species of fish....Were they all crammed in little tanks and they don't live long enough so the fish turn over is too fast? Or do people have so much space to keep so many large tanks? I've got a 240G pond right now and a few smaller tanks that take one full room....The variety of species I've kept is limited to the fingers on my two hands and I'd think I've kept fish longer than the average fish keeper on here...
And then there are so many experts that know it all. Try to get a guppy to live 5 years first before you cram an Oscar in bucket of water, and then I may change my mind on the majority of fish keepers "experience".