I saw a news piece about how gold fish in Lake Tahoe are threatening its pristine waters. We're not talking about the tiny gold fish swimming around in aquariums; these fish are one-and-one-half feet long and weigh in at four pounds. They are not indigenous to Lake Tahoe, which begs the question, “Where did all these gold fish originate?”The theory is people, tired of caring for aquariums for whatever reason, have dumped unwanted gold fish into Lake Tahoe.