Do heterotrophic bacteria like Dr. Tim's or Vibrant harm corraline algae?

[Cv111]

I have some chrsyophytes and I'm considering dosing dr. tim's or vibrant. I'm curious if it'll remove the corraline I've got coming in. I don't have too much on most of my rockwork as my tank is pretty new, so I'm worried of killing it all off.

 

[Cell]

Vibrant had no ill effect on my coralline algae.