adapt Coral growth is Co2 rate-limited until betwen 2000-7000ppm Just like how some animals can regulate their internal body temperatures and osmotic pressures, new research has discovered some SPS corals can up-regulate their internal acid balance. The research offers hope that corals may better cope with ocean acidification as well as help explain why reef keepers are able to grow SPS in lower pH saltwater when using calcium reactors and CO2.

coral Corals grow best in warm high CO2 water For cold water corals, warming is beating acidification to drive a growth spurt.