Science Post: Coral and Algae Feeding Habits

How do Hard Coral Obtain Nutrients
The Sunlight gives them energy and sugar, which is the much needed nutrients they need. They also eat Zooplankton 

how do soft coral Obtain Nutrients
Same goes for the soft coral, The sunlight gives them energy. They also eat Zooplankton. 

How do Algae in the Coral Reef Obtain Nutrients
The Algae that lives within the coral helps them contain the energy from the sunlight. In return, the algae get carbon dioxide and a protective home.