Zoa and xenia mix

[krystinaxlea]

So I got a small xenia and zoa frag a few months ago. They are thriving to say the least but they've now mixed together. Is it safe or should I suspect a fight for space?
So far theyre doing fine but i just want to make sure they will remain that way.
Thanks for any advice!

 

[bluemon]

They won’t kill each other but the zoa will have a hard time spreading out