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Xenia is a genus of photosynthetic soft marine coral in the family Xeniidae. They resemble a mushroom, with "arms" coming out from the top that end in many-fingered "hands". It is unique among corals because of its ability to use its "hands" to "pulse" or push water away from the colony in a constant, grabbing motion. Since they tend to grow in the direction of the water flow that they are near, you can get them to grow where you want in the reef tank. Getting them to grow up the back wall of the aquarium makes for an interesting display. Most species from the Xenia genus have unbranched stalks that are short, thick and smooth, from which the polyps arise. They can be cream, white brown, ivory and light green. The color is uniform with just a little contrast between the stalks and polyps. The polyps can contract considerably but do not retract inside the coral. Not all Xenia pulsate, but the species that do will generally pulse about 8 times per minute, yet there can be quite a variation in the strength and speed of the pulsing action. There is no proven reason why Xenia corals pulse. Many experts and aquarists attribute a variety of reasons for the pulsing phenomena. One thought is that they are pulsating to help with respiration and gas exchange. Water chemistry also plays a role in their pulsing, along with lighting and current, just what combination is hard to tell. They are sensitive to falling or low pH and will stop pulsing when the pH is below 8.3. Adding small amounts of carbon will take some organics out of the water. Some aquarists have found this to induce the polyps to pulse, as if the coral is trying to try pull more nutrients from the water. Supplements of iodine are also suggested by some, but with caution as Lugol's has been found to be detrimental to some Xenia colonies. If your Pulse Coral is pulsing, then keep doing what your doing! Xenia corals can be moderately easy to care for, depending on proper handling procedures. If you need to handle them, do so very briefly and with gloved fingers. When handled they stress and produce lots of mucous, which in turn can attract bacteria, leading to death. Therefore handle with care and refrain from moving when ever possible. Wild harvested Xenia corals can be very difficult to acclimate to new surrounds in general, while cultured Xenia colonies are much hardier than wild harvested species and will bounce back much easier after shipping. For that reason Aquarium Creations only sells cultured xenia colonies that are many generations old and are much hardier for shipping and aquarium life. |
Cespitularia sp. Click Picture for More Information
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Xenia Cespitularia Click Picture for More Information
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3 Xenia's at 1 Price! Click Picture for More Information
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Copyright 2018 Aquarium Creations Online Photos are representative of each species. All marine life will be unique and variations should be expected, color and sizes may vary. *Guarantee Restriction: All of our livestock are guaranteed. However for one or more of these species, they may be marked with a guarantee restriction. If it does, it means the specific animal may not handle stress from environmental conditions well. These stresses can include poor water quality, harassment from tank mates or confined aquarium conditions. When stressed, these species can lose the ability to ward off infection and disease. Other species may be listed as Restricted because they have such specialized feeding requirements that is difficult recreate in a aquarium and may succumb to malnutrition. |