Coral Restoration Theory & Techniques

Recent studies have found that about 50% of the world’s coral reefs have already been lost, and the other 50% are highly threatened. The long running philosophy of “protection is always preferred over restoration” is a luxury which no longer applies to most regions. More and more, restoration is necessary to preserve the biodiversity and functionality of reefs, and to ensure the sustainability of the resources they provide.

Our reef restoration programs have evolved greatly since our first coral nursery in 2007. We take an ecosystem approach to restoration, which means that we take a holistic approach, focusing on the long-term sustainability and adaptability of the ecosystem rather then just trying to add more corals into areas where they will not survive. This approach has proven successful, as detailed in this 2020 independent analysis of our reef restoration techniques following more than 10 years of our concentrated efforts.

Our courses are on the cutting-edge of science-based coral restoration with a focus on genetics, adaptability, and resilience. We also adhere to the code of ethics as outlined by the Coral Restoration Consortium. Participants in our program will learn all of the theory and techniques behind coral reef restoration, as well as get hands on practice in these techniques. With almost 15 years of experience, we can ensure that everybody coming through our program will leave feeling knowledgeable enough to initiate programs of their own, and confident enough in their skills to carry those projects out to completion.

Coral Nursery

Our Coral Restoration Topics Include

  • Coral Gardening
  • Coral Fragment Collections
  • Coral Nursery construction, maintenance, and monitoring
  • Out-planting corals to the reef
  • Monitoring transplanted corals
  • Integration of beneficial organisms
  • Predator removal
  • How to take a genetic-based approach to reef restoration


  • Be 12 years of age or older
  • Be certified as an Advanced diver under a leading diving organization (PADI, SSI, RAID, etc) or an Open Water diver who has satisfactorily completed a buoyancy appraisal with a professional diver
  • Demonstrate proper diving ability at an advanced Level and be proficient in buoyancy and self-awareness.
  • Be certified in the Ecological Monitoring Program


  • Understand the threats to coral reefs, the factors affecting coral growth, and the basics of coral reef restoration
  • Understand coral life cycles, the ecological differences between the asexual and sexual reproductive cycles in corals, and the importance of maintaining high biodiversity on the reef.
  • Understand the history and evolution of coral restoration techniques as well as local standards (do’s and don’ts)
  • Understand the theory behind the use of coral nurseries as well as the practical application of locally and internationally developed techniques
  • Perform the practical steps of building and maintaining a coral nursery
  • Perform a monitoring dive to take data on the health, growth, and diversity of a coral nursery


  • Attend the coral nursery knowledge development session
  • Perform 2 practical dives either/or: Coral Nurseries – (1) collect coral fragments and secure to the nursery (2) perform maintenance and cleaning (3) collect data on growth rates, mortality, and diversity Coral Gardening – Re-secure at risk coral fragments either wedging or using epoxy or securing to benthic grids

Minimum course duration 12 hours

Certification Card

Training Centers

Coral Restoration Related Readings

Coral restoration