The coral spider technique we use for coral reef restoration is based on the Mars Assisted Reef Restoration System, which is a holistic approach to reef restoration. The idea is to carefully choose sites where restoration is both necessary and an appropriate solution; to work with local communities to establish sustainable programs; and to monitor our restored reefs regularly to ensure a positive whole-ecosystem impact. We call this whole approach the Mars Assisted Reef Restoration System - MARRS. At the center of the MARRS is a hexagonal structure: the Reef Star (or the "coral spider").

Reef Stars are deployed in extensive webs that stretch across large areas of dead coral rubble. These webs of Reef Stars stabilise loose rubble and provide a strong platform on which outplanted coral can grow. After a few years, the coral completely overgrows and engulfs the Reef Stars, which become fully integrated into the reef structure. This creates new habitats for fish and invertebrates and encourages the settlement of additional native corals. As natural ecological processes kick back into motion, the whole reef comes back to life.

The MARRS approach has been highlighted by independent scientists as a stand-out example of good practice in large-scale marine restoration. Part of its success is down to its flexibility – Reef Stars could be deployed in conjunction with a range of other restoration methods for maximum effect. By combining Reef Stars with tools like micro fragmentation, larval enhancement, and direct transplantation, we can achieve success in a wide range of different environments.