A 29 is a bit small for a flame IMO
. Flames can be hit or miss. One will never nip anything, one will only nip SPS
and/or clams, another will never nip anything. It is risky. I wouldn't put one in a 29. In addition to the tank size alone being an issue, it means fewer corals, less rock to forage on, more likely to be nippy/damaging.