The Bubble Coral definitely makes a valuable addition and also an eye-catcher to any aquarium. It is topped with oddly-shaped, swollen vesicles that give it a unique appearance. Although the Bubble Coral is aggressive, it makes a great choice for any aquarium as they are hardy and has the ability to live under a relatively broad range of conditions. The Bubble Coral needs a moderately lit place where it undergoes photosynthesis with the help of the entrapped symbiotic algae, zooxanthellae. This alga manufactures food and provides nutrition to the coral using the light energy. Also, it can be fed with small pea-sized bits of fresh fish or a smattering of defrosted frozen Mysis shrimp once a week to stimulate the tentacles for feeding, but avoid over feeding. The bubbles of the Bubble Coral are specialized tentacles that regulate the amount of light, which the algae receive, by expanding or contracting their surface area. These bubbles, armed with stinging cell called as sweeper tentacles, are typically filled with water, which expands during the day, and then deflates and retracts into the skeleton when not needed. The Bubble Coral shows asexual reproduction where small growth arises from the lower edge of the flesh. This growth increases with time and eventually develops a small skeleton of its own, hence breeding in captivity is quite possible in the tank. Even by clipping off the buds manually and placing them in an appropriate location can speed up the whole process. Due to its aggressive behavior, it is suggested to provide them their own niche and keep it away from neighboring corals. Also, if any damage is caused by crabs, shrimps or other fishes, it should be immediately attended because it can cause a ?brown jelly? infection which can spread to other corals.
This truly fascinating coral has soft tissue that blows its vesicles up with water during daylight hours resembling a bunch of bubbles sitting atop its skeleton. These bubbles deflate at night and allow the coral's sweeper tentacles to reach out to try to trap food.The size of this item is when fully open under metal halide bulbs.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 a 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 cnidarias have tentacles with stinging cells that can shoot tiny poison darts into prey or 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. Cnidarias can be either 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 Corals, especially Hard Corals, should not be placed within reach of another Coral.