SPS Corals Growing but about to colide. (What happens)

[Wally.B]

So for a while my worry was keeping my SPS corals healthy.

Now I'm a bit past that point since I've managed to keep chemistry/temp stable, and have recently bumped up my Calcium over 450ppm. So now growing has sped up a bit.

My new worry is what happens when corals growing on the surface of my rock collide with one another as shown in picture below?

What happens when they colide? What should I do? (nothing?)

 

[ZON]

nothing... they will do all what they want in my tank every coral touch neighbours..

 

[biggles]

One will kill and overun the other one.
They will meet and simply stop encrusting.
One will encrust right over the other one with no stinging.
They will sting each other and if neither is nasty enough they will stop fighting and encrust in another direction.

Those are about all the outcomes i can think of mate. If one is clearly going to kill the other acro i would either kill the growing edges of the dominant one or move the weaker acro. Boiling hot RO tends to take the sting out of any nasty acros encrusting edges allowing the weaker frag to get a lot more established.

 

[rgulrich]

This:

The branch that was wrapped up by the violet Acropora has died from that point up to the tip now, and I expect it to be new territory for the violet coral.