Get Algae Growing On Coral Pictures . The coral provides a structural substrate or base for the coral to live on, while the algae produces much of the food that the coral needs to survive. The sunlight helps the algae grow. Coralline algae naturally grow on live rock and give the ... from www.algone.com Thanks to its simple farming and harvesting process, the coral allows with this in mind, ulrim has created the coral in order to rebuild the relationship between humans and algae. In your experience, how long did it take you before you started seeing coralline algae grow on base rocks without any help from live rock. Algae does grow on and inside coral. The algae live inside the coral, and provide it with sugars and other to survive, coral reefs need algae, sunlight, clear clean water, warm temperatures, and saltwater. Harmful algal blooms have the potential to lay waste to coral reefs...