I have a mating pair of Perculas that I have since 2011. They have been in my 125G for 3.5 years and since the last seahorse died about 1.5 years ago, they have had the tank mainly to themselves. Last week I started adding some new fish. I added 3 juvenile yellow tangs at the same time last Friday. The bigger female clown was very aggressive and killed one of the tangs within a few days. I removed the clowns for a few days and redid the aquascape and then put the clowns back but the tank but the female was still extremely aggressive and went after the 2 remaining yellow tangs with gusto. I tried a mirror but the clowns ignored it. I removed them again into a barebottom 29G with a couple of PVC Ts. They have refused to eat for the last 3 days. I tried a variety of foods including flake, pellet, frozen mysis, frozen blood worms, and live adult brine shrimp. They spit everything back out. I tried to overnight some garlic extract but it got delayed in the midwest storms, so I plan to get some today at the store. Any other ideas?