I probably know the answer to this but I will ask it anyway. I have full grown male & female breeding pair (9 years old) false percs that currently host in a large leather coral in my 58G tank. I am getting ready to move everything into my new 140G cube, and it just so happens a buddy of mine is shutting down his tank this week and giving me all his rock & fish. He has a couple of smaller true percs that need a home, would my older percs kill these guys or is my new tank large enough for this to work???