Coral reefs have diverse and rigid coral structures. That is why we maintain a high diversity of the artificial structures we make and we vary the layouts of our new reefs. Our structures consist of concrete and steel, per element we have different sizes. After deployment of the structures we transplant corals on them. Either from the coral farm or we use ‘corals of opportunity’ (corals broken off naturally eg by storms).
If you like to know more about our approach, see the article ‘The efficiency of artificial reefs and the best parameters for their success’