I need some advice from you guys. I was told at my LFS that I cannot keep just two yellow tangs together in one tank. He told me I can either keep one or I would have to go to at least three. However, my two yellow tangs are doing great together, but my hippo Tangs are doing what the man told me my two yellow tangs should be doing. He said that I have two tangs in the tank together that one will try and dominate the other one and then eventually one would die.
Is this true can anyone tell me?