Why do corals grow faster on a Biorock structure?
Corals grow at accelerated rates with mineral accretion because the electricity flowing through the structure creates chemical conditions (high pH) at the surface of the growing limestone crystals and at the surface of the corals limestone skeleton, greatly speeding up their growth. Corals normally have to spend a large part of their energy to create these conditions in order to grow their skeleton, but mineral accretion provides the right conditions for free, leaving the coral with much more energy for tissue growth, reproduction, and resisting environmental stresses.