I figured it would come up eventually

but I want to thank you for not starting a tang debate and just wishing me luck, no need to get nasty right?
I've thought about it myself for a long time, and I've decided that it
should be okay for both tangs to be in my tank, until they either:
1.) Show signs of severe aggression or
2.) Show signs of poor health
If one of those two situations arise I will promptly return one of the tangs. I don't want to stress my fish to the point of poor health because I want them to not only survive but thrive.