Eh, pretty fish, and I can easily see setting aside a 29 for them, but something like a 55? Would make an interesting tank for a species only for a 3in fish. It takes a special person to love a species only brichardi tank as they pretty much lack the color that the majority of people like to see in fish. But I can dig what your saying. Like I said, IME, a 29 allowed for a good amount of growth for the colony. But the bigger the tank the bigger the colony. Any tankmates not big enough or willing to eat the brichardi will likely be bullied to death.