So I have a Rotkeil Severum and a Gold/Red (orange?) severum in my 135 gallon CA/SA community tank. They are both about 6" and have been very peaceful together for months. In fact, I believe they are paired, and a couple months ago they even laid eggs but didn't successfully produce fry. (I assume the Gold severum is the female, she was guarding the eggs). The past few days, the Rotkeil has been chasing the Gold all over the tank relentlessly and nipping at her fins. I tried putting him in a "time-out" box but he squeezed out of it after an hour and resumed chasing. Any advice? I don't really have an empty tank to move him into right now, but i can divide one temporarily if I really need to.