"it is gonna happen sooner or later while you're sleeping or off doing something else."
hehehe, you mean you do other stuff?
I intervene, I can't just sit there and watch something torment or kill something else... I've never been able to suspend my disbelief enough to think my aquariums are natural habitats... they aren't. And many of these species would never see one another in nature... but, ultimately, if I get some psycho specimen that becomes aggressive he's moved out to a better place, LFS
, friend with tank, etc... I do keep in mind though, that it's not the aggressor's fault that he's aggressive...