Corals need a lot of energy to balance pH levels and become more alkaline so they can produce calcium carbonate, the skeletal foundation of their “homes.” Corals currently face many threats including poor water quality, predators, disease, and increased water temperature. Even in the most perfect environment it takes a massive amount of energy survive these threats.

The BIOROCK® method offers ideal conditions for coral growth thanks to low electricity (ion area) and alkaline conditions around the structure. This environment mimics the conditions required for the corals to produce Calcium Carbonate. These conditions also increase their energy allowing them to survive other threats. The ideal conditions and the surplus energy increases survival rate and allows the coral to grow faster then those without the energy boost supplied by Biorock technology.

Biorock coral reefs turn barren and dying areas into pristine reefs swarming with fish in just a few years, even where natural recovery was thought to be impossible. Biorock has been proven to grow coral 2 to 10 times faster. Most other coral reef restoration methods work well, but only under the perfect water quality conditions.  Other methods fail when water becomes too hot, muddy, or polluted. Biorock corals continue to thrive when others die, and they cost less than other methods.

BIOROCK® technology greatly accelerates coral settlement, growth, healing, survival, and resistance to environmental stresses such as high temperature, sediment, and pollution. All other marine organisms examined also benefit. These amazing results happen because the Biorock process creates the ideal biophysical conditions that all forms of life use to make biochemical energy. This also has enormous implications for medicine and agriculture that we will develop.

The most successful Biorock project to date is located in Pemuteran, Bali. Sustainable maintenance is achieved by training, guiding, and involving the local community. Biorock is an ACTIVE restoration effort, which increases coral growth and survival rates.


The Biorock method was invented, developed, and patented by the scientist Prof. Wolf Hilbertz and biologist Dr. Thomas J. Goreau. Low voltage direct currents (+1.2 Volts) go through the steel structure. Electrolysis occurs when the 2 metals receive electricity in sea water. As a result the steel structure grows solid limestone minerals while the metal to slowly disintegrates. These currents are safe to humans and all marine organisms.

There is no limit in principle to the size or shape of Biorock structures, they could be grown hundreds of miles long if funding allowed. The limestone is the best substrate for hard coral. The Biorock process is used to regenerate and repopulate damaged reefs, break the wave action, and grow beaches.

The Biorock process is used to regenerate coral reefs, re-populate damage reefs from coral and fish, break the wave action, and grow beaches.

Hard and soft corals, sponges, tunicates, and bivalves are observed to grow on Biorock materials at extraordinary rates. Hard corals on a Biorock structure can grow 2-6 times faster than in natural conditions, the corals on the Biorock reef are exceptionally bright coloured and densely branched, heal from physical damage at least 20 times faster, have up to 50 times higher survival rate from the most severe high temperature bleaching events, and show rates of new coral growth higher than any previously recorded data.

Fish and lobster population growth in these structures is extraordinary, especially juvenile fish, and depends on the shape of Biorock structures, which can be made to provide an extraordinary density of hiding places. Biorock reefs have turned severely eroding beaches into 15 meters of beach growth in a few years by slowing waves so that instead of eroding sand at the shore, they deposit it. They have been found stable in category 4 hurricanes and the Asian Tsunami, because the open frameworks allow large waves to pass through.