20141222 Mixing Zebrasoma Tangs

As you might have read in one of my previous posts I lost my beloved yellow tang during the tank transfer. I have been wanting to replace it but was living under the fear that the desjardini sailfin tang would tear it apart since they belong in the same genera.
Last weekend I added a pyramid butterfly knowing no one would bother him. And I also added a paracanthurus hepatic blue tang to test the waters of the sailfin tang's acceptance of another tang. My logic it that not only the blue tang look different enough, but it also was of a decent size and in a larger community. The large tank size, complex rock work, as well as many other active fish distracting the acclimation process paid off. Both the blue tang and the butterfly were successfully introduced with only a minor flame angel incident.
This week I discovered a healthy, well eating yellow tang at a local fish store and decided to go for it.
The yellow tang was initially timid upon the introduction. But I did a heavy dose of feeding as distraction. Not only no other fish bothered the new comer, the yellow tang actually took a few bites!
During the two nights ensuing the introduction, I have observed no aggression at all from either of the existing tangs toward the yellow tang with the exception of occasional "size up" fin display. But no slashing action.
Here is a video of all the fish swimming happily together.

20141214 New fish in my 180 Reef

Added two new family members to my 180 Reef tank today: The gold pyramid butterflyfish, and the Paracanthurus Hipatus blue tang. I need to add the full name for the tang because there is a lot of confusion over the word "blue tang" in the trade.

Shot o my mix reef with the new fish. Lower left is the desjardini. pyramid butterfly in the middle. and the blue tang next to the clarkii clownfish.

My initial fear for adding these two fish were: 1) the pair of flame angel can be aggressive to any new comers regardless of species and size. 2) the desjardini tang being aggressive towards another tang.
The result- I actually also also introduced four blue line cardinal fish at this time, and no one messed with them at all, they joined my existing school right away. When introducing the butterfly, only one of the two flame angelfish came up and sized him up a bit but then left it alone afterward. All other fish completely ignores it. The blue tang went into hiding for 10 minutes and scared himself upon introduction- in my experience, very usual behavior for this shy fish. After 10 minutes it came out and swam around and explore the boundaries. No one bothered the tang at all, not even the desjardini. The blue tang must look so different from the desjardini tang that it they felt no threat to each other at all.