Blue snowflake polyps

[polarbear]

How do I kill them without taking the rock out of the water? I love them but they are on multiple rocks and I don't want them all over the place.

Also so will this coral smother out other corals like SPS if it grows up against it?

[aquasport24]

They should be ok, or you can swap the rock with other member here.

[polarbear]

I can't swap it out. My SPS are encrusted on that rock.

[Dean]

I have some growing on a rock in my softy tank Mitchell and the zoa colonies herd them. From what I have seen they can take over live rock surface but won't over run other coral.

- Dean

[polarbear]

Good to know. Thanks.