The Pearl Bubble Coral has large water filled bubbles (vesicles) covering large sharp sepia. It resembles grapes and expands mainly during the day, whereas, at night the vesicles are deflated. The Pearl Bubble Coral is hardy but takes time to acclimatize in a new environment. It is moderately aggressive towards other fishes, and has a fairly potent sting. Since its sweeper tentacles are not long, the Pearl Bubble Coral can be positioned fairly close to other neighboring corals. But we recommend providing them plenty of space so that it can extend its tentacles without affecting any neighboring corals, and can grow freely. It prefers low to moderate water currents, and be sure not to place it in direct current. Doing so will cause the coral?s vesicles to remain closed, that will eventually result in death. It thrives well in a temperature range of 75-84 degrees Fahrenheit and requires moderate to strong lighting for its proper growth and development. The Pearl Bubble Coral is photosynthetic, and manufactures its food and gets nutrition from light. Additional supplements like shrimp or other meaty foods may also benefit the Pearl Bubble Coral for its continued health and growth. We also advise you to maintain and regulate the correct calcium levels in the aquarium, which is important for its skeletal development. The Pearl Bubble Coral is one of the most beautiful and easy to care for corals, which makes a great choice for the beginner aquarist. If you use florescent tubes for lighting, it may be better to place this coral closer to the surface. You should be vigilant towards the over-growth of algae as it may cause damage or even death to the coral.
The Pearl Bubble Coral is very similar to the regular Bubble Coral except the Pearl's bubbles are more numerous and smaller. Often times the Pearl's bubbles will have elongated tips.The size of this item is when fully open under metal halide lighting.Corals are part of a biological group known as Cnidaria. Most Cnidaria have a mouth, or mouths, that opens into one big body cavity. Due to the lack of a true digestive system, this cavity acts in its place and after the food is broken down the nutrients are then sent through the rest of the body as food. There is also no excretory system; therefore the waste is sent back through the mouth or secreted into the surrounding water.Tentacles of varying size will usually surround the mouth of Cnidaria. Most Cnidaria have tentacles with stinging cells that can shoot tiny poison darts into their prey or can even be used as a defense mechanism. Some corals lack tentacles and instead cover themselves with a thin layer of mucus and use that to collect bacteria and plankton as food. Some corals even use both of these methods. Cnidaria can either be an individual animal or members of a complex colony. These "Colony Corals" share the food and nutrients taken in by each individual.Corals have tiny living organisms that actually live in their tissue. These are called zooxanthellae and they are the reason why such strong lighting is needed in the saltwater aquarium. These algae-like creatures provide the coral with oxygen and other nutrients that are produced during photosynthesis. During this process, the zooxanthellae take up carbon dioxide and provide nutrients to the coral.Corals can use two different types of defense mechanisms. One of which is a sweeper tentacle wherein the coral reaches its tentacles out to try to damage another coral with nematocysts. The other is when the coral releases a minute amount of toxin into the water to poison another coral within certain proximity. Most "Hard Corals" should not be placed within reach of another coral.