So I have been trying to get a yellow tang into my tank for a few years and my purple would not allow it. This time I trapped the purple tang and put him my sump with a yellow tang I got from my friend. They are the best of friends since I put them both into a new enviroment at the same time. My question is how long do I keep them in the sump until they both go into the main display tank. I do plan on adding and rearranging some of the rock work in the main tank so the purple thinks he is in a new home.


