Aggressiveness

[cosmo]

I want to stop the aggressive behavior of my yellow tang towards my hippo tang. I'm adding another 30 pounds of LR, will this be enough to stop it or do I need to change my existing LR also??
cosmo

 

[waterwolf]

Tangs usually are aggressive toward each other unless you have a school of them. 2 tangs in a tank usually result in one picking on the other. Do you have a spare tank? You might try removing the yellow tang for a few weeks, rearrange your 125 then add the yellow tang back in. I doubt this will work but it might be worth a try. Your other option is to take the yellow tang to a LFS and trade it for another fish(not a yellow tang). Hope this helps.