Coral is actually a living thing, not a rock. Coral is not a rock at all. It is the skeletons created by anthozoans. These are a live organism. A rocklike deposit consisting of the calcareous skeletons secreted by various anthozoans. Coral deposits often accumulate to form reefs or islands in warm seas.
corals.
A sedimentary rock called coquina.
sea pens, blue corals, soft corals and sea fans.
A sedimentary rock called coquina.
Limestone is a sedimentary rock formed by cemented shells of marine organisms such as corals and shellfish. The accumulation of these shells, along with other calcium carbonate materials, over time creates limestone rock.
The coral reefs are mostly able to grow in clay like material that keeps the coral stable. They just need sand for certain corals and other grow on solid rock surfaces. It just depends if the coral is a Small polyp stoney corals or a large polyp stony or some other kind of soft coral.
Any kind of material in the water, whether it's sand, debris, whatever.
Sedimentary rock is made from ancient coral reefs buried by sediments.
Bioherms are carbonate rock formations, in the form of an ancient reef or hummock, consisting of the fossilized remains of corals, algae, mollusks, and other sedentary marine life, and commonly surrounded by rock of a different lithology.
most the time they live on live rock but they are usually found on corals as well.
Limestone is an example of a sedimentary rock that can be formed through both chemical and organic processes. It can be formed chemically by the precipitation of calcium carbonate from water, or organically through the accumulation of marine organisms like corals and shellfish.
soft corals live deeper water than hard corals because soft corals do not create a hard outer skeleton as the hard corals do.