Did you know that coral reefs can only be found in the shallow parts of warm oceans and seas as hard corals cannot live in fresh water??? Well now you do!
Coral reefs only form if...the water temperature is between 23 and 25 degrees celsius; actually they can live in temperatures are above or below these but they won't be able to grow as fast to from a coral reef
...there is enough sunlight for the zooxanthellae to survive
...the water carries enough food and oxygen past the coral polyps
adapted from Life in the Coral Reefs
Done by Tabigail Hung
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