Bolivians are the reason I had to get so many tanks, to separate them. That's my story, hehe. Seriously, if two can't see each other in the 20 L, it may work out for awhile, but generally they detest and annoy each other. Other community fish aren't even on their radar.
You'll probably see this constantly :evil_lol:-
[video=youtube;APv7bQCncoU]http://www.youtube.com/watch?v=APv7bQCncoU [/video]