Mandarin - To add or not to add?

[Doug]

Six lines can be very aggressive. Thats a fact I have seen and read about. I know of people who have taken tanks apart to remove them. {part of why I said be careful if adding one for flatworms}.

They compete for the same food as mandarins, thus always the possibility of eliminating the mandarin, so less competition for that food source. Such as picking their eyeballs out.