Be careful with the niger trigger. We had one and he killed most of our tank. They tried to tell us he was a "docile" trigger. I don't think that there truly are any "docile" triggers!
cool tank! how big is it? your banana wrasse (Thalassoma Lutescens) should get closer to 12 inches than 10. but they need alot of substrate and alot of swimming room. but it is a pretty cool looking tank. it looks like your wrasse is a female or at least the colors say so.