So as i found at my lfs a male flower horn, (about 4") I believe he is a zz and i added him to my tank with my female (5 inches) and a few feeder gold fsih. Man for the first couple hours they where best friends. killing the goldfish together, i swear it was love. I come back 5 hours later and now they are locking lips and one of thier lips is swollen and shreaded bad. The other fish has many bites on the face. I read this is a mating ritual but it seems a little to bdsm then make loving. Is this normal?