I agree with the above Tom.
Of macroalgaes that could be put into a display tank, Caulerpa's would be one of the last I would want. Once they get their holdfasts into your rock, it's hard to change your mind because you'll never fully be able to get rid of it.
All species of Caulerpa have secondary metabolites (toxins) but they are in varying degrees. Some have a lot like Caulerpa prolifera or Caulerpa taxifolia and a lot of others have much less. However, biological control of it is hit or miss. _________ Curt  |