We are running a large (1200+- gallons) tank. recently I purchased a 65 gallon tank to try and start a breeder colony, I put 3 females, 1 male. after a few days we lost one female, Now what I believe to be a dominant female is wreaking havock on the others, I just removed the male as he is becoming scarred and appears weak. The female "terrorist" continually runs arounf fins flaired, head and fin…