I set my tank up in July 07. Its a 55g. In september I purchased 2 false percs. One is larger then the other and they get along fine. I had a hair algae outbreak and I cleaned it up with some mollies. The clowns kinda bullied them around but not so much. A week ago I purchased a yellow watchman goby . The first day was fine. The second day all they did was beat on him and shred his fins. I have about 60 pounds of LR in the tank and they would try and run him out wherever he went. I removed him before they killed him and put him in QT. Now the mollies are being beat up. I have no Anenomie for them due to the tank is only 7 months old. Should I upgrade to a larger tank ? They swim the entire tank. Or should I buy a anenomie ? Any advice would be great.