I have 2 six inch Red Albino Oscars in my 90 gallon tank.I am hopeing for a mated pair.One is always chasing the other around,there is some agressive moves but no fin damage on the one who gets chased.I know they could be 2 males.but I hope for a male and female.What I'm wondering is would a few silver dollars help deflect some of the agression thats going on in my tank?