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Coral reefs are underwater structures made from calcium carbonate secreted by corals. Coral reefs are colonies of tiny living animals found in marine waters that contain few nutrients. Most coral reefs are built from stony corals, which in turn consist of polyps that cluster in groups.

Coral reefs are underwater structures made from calcium carbonate secreted by corals. Coral reefs are colonies of tiny living animals found in marine waters that contain few nutrients. Most coral reefs are built from stony corals, which in turn consist of polyps that cluster in groups.

Elegance Coral

Elegance Coral

@joshporksandwich at it again...  #polyplab . Want us to feature your tank?…

@joshporksandwich at it again... #polyplab . Want us to feature your tank?…

Coral reefs are among Earth’s richest ecosystems. Animals called coral polyps build calcium carbonate skeletons. Over years the skeletons build into large structures that provide refuge, homes, and food for many other species. (Andrey Armyagov / Shutterstock)

Coral reefs are among Earth’s richest ecosystems. Animals called coral polyps build calcium carbonate skeletons. Over years the skeletons build into large structures that provide refuge, homes, and food for many other species. (Andrey Armyagov / Shutterstock)

Anilao Reef by p@ragon, via Flickr

Anilao Reef by p@ragon, via Flickr

Dit is koraal. Er zitten verschillende koralen aan elkaar. PIN: Floortje

Dit is koraal. Er zitten verschillende koralen aan elkaar. PIN: Floortje

Korallen

Korallen

Stunningly beautiful! | under the sea | | oceanlife | | amazing nature | #oceanlife #amazingnature https://biopop.com/

Stunningly beautiful! | under the sea | | oceanlife | | amazing nature | #oceanlife #amazingnature https://biopop.com/

una belleza q muy pronto veré

una belleza q muy pronto veré

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