To answer your questions. How long have I had the colonys? I recieved the colonly from a fellow reefer about June 2005. They were very small frags with only one small branch each. I did put them in at the same time. I think I might of move one colony one time before they settled into the place they are now. Here is a picture a few months after I added them.

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I started to see the baby colonlys around July of this year. Just very small dots of intrest.
They were really settling everywhere. On the back glass. powerheads, inlets. outlets. Even on my clam. It did seem like they settled more on vertical areas than on flat surfaces. They also seemed to settle in low light places.
They started out growing slowly, but have seemed to really take off lately, turning into small colonys.
This is very new to me and I am excited to learn much more.
Have you had this happen in your tank too?
Victoria