I have a 3"+ blue dolphin in my 75g peacock tank. He constantly chases all the peacocks around despite the fact that he is the smallest in the tank. Free if you are able to provide a better home. I am located in Ellicott City.
I found that blue dolphin are more aggressive than most fish profiles suggest. Coloring up early as Mbuna, blue dolphin behaves somewhere between Mbuna and Haps.