my experience is that they will be Ok, there may be skirmishes every once a while but they will live usually settled into 1)one big family or 2)one major family and couple individual males scattered around the tank.
I have had the same 2 ocelarious clowns (mated pairs that spawn regularly)for the last 9 years they can be pretty aggressive, I would introduce them all at one shot with a larger anemone they all can host maybe 2 to prevent competition.
my clowns are in a 450 with a large sabe and they are intolerant to any new clowns I have tried to introduce
lol wingro 5 of them came from u at macna, i no longer have any of them as i had a fish i skipped treatment on and broguth flukes into tank and wiped 90% of fish out