what's going to happen when....?

[Ballyhoo]

I really do love my green polyp garden ,but there is a visitor coming close to it.
I may have to rehome this to another tank? At LFS they have a big BTA along near very large coral and the only thing I can see is where they touch there could be a little bit of tissue damage.

 

[Uncle99]

Potentially.
My BTA only comes next to, but does not touch, his neighbour.