Caulerpa question

[irisheyes]

I have had my tank up for several years. Every so often I have this problem. The Caulerpa starts growing and I let it grow for awhile to use nutrients etc. I always harvest it before it goes sexual. "I had that happen once". When I pull it off the rocks, I usually "right away" have an outbreak of Hair Algae and or, Bubble Algae. Should I pull it up while it is really small, or will it make a difference? My Phosphates show Zero and so do my Nitrates. I have checked here at home and had the LFS check also. I know there is something that is making it grow but can't figure out what. I don't have a refugium because I am still trying to figure out what I need and how to set it up. I WILL be trying that as soon as I get these things figured out.
Any Idea's?

[fish are life]

if you have room pick up some fish that eat it, my yellow tang, koran angel, and racoon butterfly love it. But if you have a reef make shur they are reef safe