I just wanted some thoughts on adding a yellow tang to my 55. I realize tangs get large and need a lot of room to swim, but seeing as the yellow is one of the smallest I am wondering if I can keep one happy in a 55. I also realize the difference between keeping a fish alive and keeping a fish happy and healthy, and I definitely want to make sure I focus on the latter. I currently have 2 small ocellaris clowns, a yellow watchman, 2 neon gobies, and a 6-line wrasse in the tank. If I get a yellow tang I would buy a small one and probably would not add any other fish to the tank. I also might get rid of one of the neon gobies. Now, I need your opinions in deciding. Would the tang be happy in this tank? Would it be overstocked with the tang? Also, how quickly do yellow tangs grow? I am hoping it will take a while to get big and by that time I will have a larger tank. As far as tank conditions, there is a lot of open room to swim. I have two fairly open pinnacles of LR with a sand patch in between. All tests are fine, I currently keep SPS corals without a problem. I have never kept a tang of any kind so any advice would help. Also, assuming a small tang would be OK, how about a scopas? They are similar size to the yellow aren't they? Are their swimming needs the same or do they need more room? Thanks a lot for the help.