I just thought I would share! My husband knows NOTHING about fish. Well, we visited our local 'chain' store yesterday because our 2yrold wanted to see all of the animals. My husband promptly asked the young girl working in the fish section for 10 platies. I told him 'NO' and tried to explain to him why you cant realistically house tropicals with fancies. He refused to listen.
Well, I did not expect any help from petstore employee & fully expected to be returning his fish tommorrow, her response actually left me speechless. She 'expertly' explained to my husband that goldfish have "special killer bacteria" in their poop that will kill any fish you put in their tank. I had to walk away from the conversation. Needless to say, he found me 15 minutes later and said "see, you dont know anything about fish! The special killer bacteria are why you cant keep platies with goldfish". I just smiled!