Getting Bolivian rams to pair
For a couple months I have had what I believe to be a pair of Bolivian rams in my 55g tank. I have looked at some really good tutorials of how to sex rams and I would say I am pretty confident I have a male and female. (I intentionally bought two I believed were male and female, when Petsmart was having a sale and selling them for like $3 each.) The "male" is slightly more colorful and has slightly longer fins, has a noticeable smaller ventricle, and his head looks a little different than the female. But the problem is that they don't seem to know they are male and female and are not pairing up. In fact the male chases the female, not violently, but consistently. (I also have a pair of GBR in the tank that I got recently at Petsmart on sale, and they are definitely a pair, and always hang out together, and look quite different. I wouldn't be surprised if they breed soon, because they are in full breeding coloration.)
So anyway, is there something I can do to encourage them to pair up? They have been getting good, varied food, and to me at least seem mature enough to be pairing. I know ideally you get a group and let them pair themselves, but is there anything I can do?