it is not recommended depending on tank size? but I have 2 in a 55 one is a true perc and the other a oscolarious man I killed the spelling on that one. and they get along great as of now but they have only been in there a few days so time will tell if not I have a few other tanks I can drop one or the other in.
and thats where tank size has alot to do with it as from what I read on other forums they have more room when they do not want to be bugged. and having sets of each helps also.