Use some form of 6700k light...Coralife has a little one at J&L for about $28 that would work well (freshwater aqualight mini). Most people tend to use Chaeto as it's easy to grow, does a good job removing nutrients and is relatively easy to maintain.
Hope that gives you a start.
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Mark...
290g Peninsula Display, 425g total volume. Setup Jan 2013.
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