Cup Coral, Pagoda (Turbinaria peltata)

The Turbinaria Corals are large polyp stony (LPS) corals. Depending upon the species, they are referred to as a Cup, Pagoda, Turban, Vase, or Scroll Corals. The genus name, Turbinaria, is derived from the Greek word turbinatus (cone-shaped) because it usually grows in a conical or cup shape while living on the reef. It may also be found in the form of cups, ruffled ridges, plates, vases, or scrolls. It may grow horizontally or vertically. Although the Turbinaria Corals may be bright yellow, green, brown, gray, or cream, this particular specimen is green. A number of species may extend their polyps during the day or night while in an aquarium. Turbinaria sp. vary in the amount of care they require. Those that are highly convoluted or thin plates are the most difficult to care for. Others, like this one, make excellent candidates for the novice reef aquarist. It is a peaceful reef inhabitant and does not bother other corals that are placed in close proximity to it. However, it should still be provided with ample space away from other corals because it does grow quickly. It will require moderate lighting combined with moderate water movement within the aquarium. For its continued good health, it will also require the addition of calcium, strontium, and other trace elements to the water.

Bubble Coral (Plerogyra sinuosa)

The Bubble Coral is a beautiful LPS coral that originates from the reefs of the Indo-Pacific. It has a green or white-ridged hard skeleton that can be seen when the polyps are deflated. When inflated, the large fleshy polyps will cover the entire skeleton, and are green, white or yellowish in color. Like many other LPS corals, they do posses sweeper tentacles that can harm other corals within reach. The Bubble Coral requires a moderate level of lighting combined with low to moderate water movement in the aquarium. Too much water flow may impede the coral from fully expanding. The fleshy polyps of Bubble Corals are very fragile and will puncture easily. Be careful when handling these corals, to only handle them by the hard skeleton. Because they can form long sweeper tentacles, be sure to provide plenty of room to prevent damage being done to its neighbors. For continued good health, it will also need the addition of calcium, strontium, and other trace elements to the water.