salt water
They grow in dirt
they grow by building reefs
fringing reefs
yes, coral reefs do grow well in high levels of oxygen.
10days
The three types of reefs are fringing reefs, barrier reefs, and atolls. Fringing reefs grow close to the shorelines of islands or continents, barrier reefs are separated by a lagoon from the land, and atolls are circular coral reefs surrounding a central lagoon, often found in the open ocean.
no they dont
The Arctic Ocean is too cold for coral reefs.The coral reefs cannot grow under cold conditions. They can only grow in waters between the arctic circle and the equator. They must grow under neutral tepurature water. Even if they are too hot they can't grow.
Most of the reef building corals and animals on a reef are dependant on high amounts of sunlight; thus coral reefs are restricted to the tropics where sunlight is abundant. There are deep water sponge reefs in temperate and artic regions, but they are much different from coral reefs.
fijians grow artificial corals for trade
Atoll reefs usually only form where stony coral growth is quite rapid. They are far more common in pacific reefs than atlantic. However, an atoll is simply a coral reef that encloses a lagoon, and technically they could form anywhere where reefs form.
Most coral reefs are in the more shallow water. Though there are some in the deep water also. It depends on the types of corals being grown how deep they will grow.