I posted on here a while ago about my two clowns that would not stop fighting. I had to put one in QT to keep them from killing each other. I moved over the weekend and temporarily put both in a 55 gallon (they were in 30 gallon) and suddenly they are getting along just fine. Why such a dramatic change? They are the same size now. Should I worry about them fighting again later or is there a chance that they will get along when I move them back into the smaller tank?