Coralline algae are considered a vital part in every reef and marine aquarium. These algae produce chemicals which promote herbivorous invertebrates.

What role do coralline algae serve in coral reefs?

Coralline algae are a type of red algae that helps build coral reef ecosystems in a variety of ways. They encourage reef growth by attracting coral larvae; they serve as a food source for reef animals; and help patch up broken coral skeletons by growing over breaks.

Will coral grow over coralline algae?

They will kill back coralline and grow over, but hair algae.. less likely. Really depends on overall health of that particular piece imo.