Hard corals are polyp colonies which remove calcium carbonate from the sea water to form calcareous skeletons in which they live.When they die new polyps build their skeletons on top of the old ones in efect growing the reef.Hard corals are very very slow growing and are very long lived.Corals need to be in waters of 21 C well oxygenated unpolluted and have high intensity sunlight such as tropical and equatorial regins.
This entry was posted on Friday, August 6th, 2010 at 9:30 am and is filed under Fish Feeding Systems, Marine fish tips . You can follow any responses to this entry through the RSS 2.0 feed. Responses are currently closed, but you can trackback from your own site.
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