I have a 45 gallon pentagonal tank that I have been maintaining but not restocking for a long time. The main fish in the tank is a male koi veil angelfish and other than a few fish that stay at the bottom the tank is fairly empty. I would like to add one more angelfish to the tank but I am not sure whether or not it is a good idea since I can't be sure whether or not I will get a male or female. Would it be a problem if I ended up getting another male? I know this seems like a stupid question but for some reason I am having a problem finding a straightforward answer online. Some people say they will definitely fight, some people say to get a handfull of angelfish and let them pair off, some people say they will be fine in any combination.