It's no problem at all, I really appreciate your feedback and it has made me think I should probably just omit specific examples and merely say that any combination should be done with high caution . I just didn't want it to seem that I threw that in there because of reading it once or twice . From what I've read, the fancy tailed male guppies have more potential for problems due to looking somewhat similar to a betta. I also think there's less chance of conflict if the tank is pretty large.