Tired of banging my head, help pick a fish

[Edmonton Eskimo]

you might have a hard time adding anything now that you have an established purple tang. They can be quite aggressive to any newcomers. Anything you add now can be a risk and then again you might not have a problem. If a fish is reef safe with caution myself I would steer clear of it. To try and catch a fish after it has eaten your prized corals or clams can be avoided by not getting it to begin with. Nobody can say for sure if a certain angel or butterfly will eat anything but chances are they eventually will. There are many reef safe fish that one can choose from but like I said your pt might be the final decision maker in what you decide to add. Your best bet would have been to add the pt as your last fish but I guess that doesn't help you now. One option is to catch your pt and house it in a holding tank and then add your new addition but how many times do you want to do that?