The Yellow Sun Coral is a gorgeous coral with stunning coloration that makes a great addition to any reef tank. The Yellow Sun Coral needs a targeted feeding and need to be taken care only by advanced aquarists. It is particularly hard to keep, and should only be bought in your aquarium if you are ready to feed it every other day with targeted feeding process. Normally during the day, the Yellow Sun Coral retracts itself since it is a nocturnal animal, but it can be acclimated to feed during the day and might remain open. The Yellow Sun Coral greedily grasps and ingests meaty plankton that comes in contact with its tentacles. The Yellow Sun Coral can be fed using a pipette, syringe or turkey baster, and can be trained like this to be fed with the lights on. It is advisable to soak the food in reef supplements and vitamins that helps in maintaining a high level of nutrition. The Yellow Sun Coral is generally not suitable for most community tanks, where insufficient food or too much light is provided. It is possible to breed the Yellow Sun Coral in captivity and needs high-current areas, where they reproduce in an asexual manner by generating a small yellow polyp in various areas around the tank. Since they are non photosynthetic, it becomes challenging to feed them, hence an advanced aquarist is recommended. The Yellow Sun Coral is peaceful towards other marine aquarium mates and is colonial in nature. It thrives well in a temperature range of 72-78 degree Fahrenheit, and with pH of 8.10-8.40. The Yellow Sun Coral can be placed on some substrate, such as a cave or shielded rocky area at the bottom of the aquarium, and therefore opens up after settling down properly in your reef tank. Over the time, the Yellow Sun Coral will stay open for longer periods during the day especially if it sense food in the water column.
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 digestivesystem, this cavity acts in its place and after the food is broken down thenutrients are then sent through the rest of the body as food. There is also noexcretory system; therefore the waste is sent back through the mouth or secretedinto the surrounding water.Tentacles of varying size will usually surround the mouth of Cnidaria. Most Cnidariahave tentacles with stinging cells that can shoot tiny poison darts into their preyor can even be used as a defense mechanism. Some corals lack tentacles and insteadcover themselves with a thin layer of mucus and use that to collect bacteria andplankton as food. Some corals even use both of these methods. Cnidaria can either bean individual animal or members of a complex colony. These "Colony Corals" share thefood and nutrients taken in by each individual.Corals have tiny living organisms that actually live in their tissue. These arecalled zooxanthellae and they are the reason why such strong lighting is needed inthe saltwater aquarium. These algae-like creatures provide the coral with oxygen andother nutrients that are produced during photosynthesis. During this process, thezooxanthellae take up carbon dioxide and provide nutrients to the coral.Corals can use two different types of defense mechanisms. One of which is a sweepertentacle wherein the coral reaches its tentacles out to try to damage another coralwith nematocysts. The other is when the coral releases a minute amount of toxin intothe water to poison another coral within certain proximity. Most "Hard Corals"should not be placed within reach of another coral.