I think that is a viable possibility. Just dont get too attached to the chromis and hope to at least have 3 of the original 5(poor shipping, territory outside and inside it's own specie so be assured its not always indicative of water quality..)! But will make for a colorful display and pretty much leave no space unturned in the tank with movement. The chromis will school, the clown will find its "spot" , flame will meandering through it all, and well you know where the goby will be
I think that'd be fine as long as you dont get that "something else.." The flame and clowns demand some elbow room in there own right and the chromis can get away with crowding them a lil as there very social and very non-agressive. Im successfuly housing 3 chromis, 1 maroon clown, and 1 CB Butterfly myself in my 50 but am pretty much maxed out at the same time. I use to have a good size wrasse in there but between him and the chromis, it kinda left my butterfly soley dependant upon me for food as they would clear the tank, especially the wrasse.
Hopefully you have a good pod population, the chromis cruise all day lookin for em, and the flame will spend his day huntin' and peckin too. I'd add the chromis then the flame though and not all at once. It's always an easier acclimation for everyone involved, to get use to each other's territories, and just as importantly allows your tank to increase its bacteria and pod population in adjustment to it's increased biolode, will help keep tank more stable and decrease the chances of stress and algae blooms. Also, the flame is one of the more aggressive inhabitants so its always a good measure to put them in last so they are less likely to bully. Sorry for the windy post, got on a roll I guess
-Justin
