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Old 12/20/2016, 03:24 PM   #16
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Join Date: Jun 2003
Location: Utopia TX
Posts: 50
The Blue Coral is Heliopora, and great in tanks. The green is a type of tongue, of which there are a few genera, Herpolitha and Polyphyllia are the common ones in the hobby.
There are a couple other similar types of tongues.

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