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Economy's Impact?
How as the economy effected your reefkeeping habits?
I am spending more then ever.
I have not changed my reefkeeping habits.
I have reduced my livestock and drygood purchases.
I am postponing all purchases of all non-essential items.
I am quitting the hobby due to the economy.

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Votes : 4421
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This is probably Halimeda sp.or Udotea sp. These two macro algae use calcium to form a skeleton of sorts. They are relatively slow growing and require high calcium levels in order to thrive. Both are good in a reef and often give the tank a much more natural appearance as reefs are often composed of 80% algal matter. It too removes nutrients from the water and can be harvested as a form of nutrient export. The dead "skeletons" of Halimeda sp. are also a primary constituent of calcareous sand in reef areas.