i dont think it could have been said better. :-DI agree. In my experience, there is not any species of Tang which thrives in an aquarium this small. The Zebrasoma genus, including the Yellow Tang, become far to aggressive in such a small environment. If you were going to try any of the Tangs, the Ctenochaetus genus would be best, but I would still consider it an unnecessary risk. The Ctenochaetus include the Yellow Eye Kohl Tang, Chevron Tang, and Tomini Tang.
For the record, clearly this guy earlier talking about Goldfish did not realize this was a saltwater tank. Nevertheless, Goldfish ARE NOT one of the easiest fish to keep. They are actually very high maintainance, producing an insane amount of waste, and very prone to infection and disease. For the record.