Temperature of tanks during Run 1. There was an initial two-week during which temperature was slowly ramped up at a rate of 0.3°C per day from the preconditioned temperature of 28.0°C to the final treatment temperatures of 30.0°C and 32.0°C. This was followed by a 54-day period during which temperature and pCO2 was held constant. During this period the P. divarcata and M. faveolatacolonies in the 30.0 and 32.0°C tanks were observed to pale or bleach. Then the temperature was ramped down until all tanks were at 28.0°C again. This was followed with a 24-day period during which the recovery of the corals was observed.