Scleractinians
22 Jul, 2014
corals that form a hard skeleton of calcium carbonate in the form of aragonite. Known to aquarists as stony corals, these are the primary builders of coral reefs.
22 Jul, 2014
corals that form a hard skeleton of calcium carbonate in the form of aragonite. Known to aquarists as stony corals, these are the primary builders of coral reefs.