Duncanopsammia axifuga or use the common name of Duncan's sometimes you see the "Whisker Coral" They come in various shades of green, the brighter and more colorful, the more they cost per polyp.
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The ORA Duncans run around $60-$80 per polyp, they have intense green coloration. The ORA's have a reputation for slow growth, but the ones I have seem to be reproducing on a steady rate, mine originally arrived to me (thanks Viper!) as a 2 polyp frag and now has 5 new polyps, I have noticed that the new polyps are growing slower than my others, maybe thats what they mean.
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From what I've seen, most Duncans can grow into good sized colonies, I've got a basic colony that is just a drab, greenish tan color that is growing like crazy. Started off as a single polyp and now has 8 new polyps that are about 1" across. I'm going to leave this colony alone and not frag it
just to see how big it becomes. This basic color runs about $15-25 per polyp
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I feed them everyday for a week, they are pigs and will eat anything, then I skip for a week, they seem to like this schedule, I have no idea why.
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Basic Colony..........................................ORA...............................................ORA