Acan coral too close to jack-o-lantern lepto?

[george9]

Acans in my tank for whatever reason grow like freaking weeds. I have a colony was TINY on the sand bed months ago but it is now getting dangerously close to my Jack o Lantern lepto and rocks. So far I don’t see any signs of aggression or damage on either coral.
I am not sure what kind of acans these are, but should I start thinking about separating them, or will they be okay this close to each other?

Thanks!

 

[blaxsun]

You'll probably want a bit more separation at some point.