Firefish are doing very well, have an established hole/home in a rock, and have been eating vigorously anytime food is placed in tank. They seem to be doing well, have had them for 1.5 weeks. I was wanting some insight on my next fish; i know i want a niger trigger, melanarus wrasse, 2 clowns (that will most likely host my torch coral), and possibly a tang. Which of these do you advise i get first? I heard niger's have been known to be aggressive and eat other fish.