| exactly,
most people argue against caulerpa due to having "read" it goes sexual. While the fact is true should you're upkeep be in check any method will work. Chaetomorpha tends to be a lower maintenance macro to run hence the preferred. Interesting to note however that several caulerpa species are illegal for sale in the state of california, you can have them in your tank, you just cant sell or hand it out as it's considered a nuisance plant. It's amazing the higher growth rate caulerpa is capable of for sure. I had read a study somewhere on the nutrient uptake of different macro's, maybe I'll dig that up again for re-reading here.
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~J
because it's all about the plankton | 
