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Can coral grow on gold? Yes. Coral is not a plant, it is an animal, and it does not get its nutrients from the soil or rock it grows on. Instead, it eats zooplankton and other small marine bugs, and it gets its calcium, amino acids, etc. from the surrounding sea water. To structurally support themselves, corals grow next to each other and harden together, forming reefs. Thus they could grow on anything!! It doesn't matter. Coral also uses photosynthesis to make sugars out of sunlight. The only way they wouldn't grow on gold is if it were toxic to coral. I do not think this is the case, since gold has little or no affinity for binding oxygen, carbon, or nitrogen. The only thing it really has an affinity for is sulfur. So if sulfur is necessary for coral to live, then perhaps.... The only thing that my pharmacology book says gold inhibits is mycobacterium tuberculosis, nothing else.

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Q: Why doesn't coral grow on gold?
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