MAroon: you are right. an aspen colony in Colorado is the largest living thing on earth, one thing, but they are not one celled. Caulerpa is all one cell, hard to imagine but true. Glad you enjoyed the link, prob the single greates saltwater site on the net IMHO. I do not know if you know who Robert Fenner, Steven Pro, Anthony Calfo, etc.. are but from the books that are written by them and their research on all things saltwater, they are great people to get advice from, (And shoot an e-mail to if you have questions). WetWebMedia was a site started by them to educate the masses on anything that lives in the water.
I do not disagree that way back when, when I used to keep C. Prolifera, I never had any problem with cutting and a 12 hour light cycle. On the other hand, I only kept a small amount on a 40 Gallon tank. The only problem I had was it growing like kudzo and trying to set up in the main tank. I have seen it turn sexual in someone's 150G tank, watching what he had to go through is what started my research on the situation and helped me make up my mind on what I was going to keep in the future. There are risks to anything that we keep, should I mix this 6 line wrass knowing that it might eat my blue-legs, should I mix this BTA that I wank with my corals knowing that I could be in trouble in the future if all out war starts. These are risks that we decide to take in our systems. I think you can go anyway that you want as long as you know fully what the risks are and agree to take them. If you are going to keep Caulerpa, great, just make sure you know how to tell when it is going sexual and how to prevent it. Also make sure that you do not dump your cuttings down the drain in any way, the stuff can live in almost anything and take over a natural water system like Georgia has been taken over by Kudzo. That is why it is banned in several states and alot of countries.