Can these fish be kept togeter

[DOO-E]

OKay the tank is 28 by 28 by 14 it already has a single pajama cardnal and i was wondering if a Banggai cardnal could be added. Are these fish going to be getting along or will they fight. I can expect aggression for the first while but will they settle down. Eventually they will be moved to la larger tank but for now will they be good.

[rodsboys]

I don't think it is a good idea to mix cardinals.Especially if one was already there.