Coral Community
Community reef tips and guides.
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Arrival care begins before opening the delivery. A prepared observation space, supplier instructions and a place to record the coral's history reduce rushed decisions. ## Before arrival Save the order details and best-supported identification. Ask the supplier about shipping, p…
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An outage plan is easier to use when the equipment has already been tested. Decide how to support essential circulation, gas exchange and temperature for your system before an emergency. ## Inventory the essentials List equipment, actual power draw, battery or backup compatibil…
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A beautiful reef picture and a useful observation picture have overlapping but different goals. For an identification or concern, accurate detail and a repeatable view matter more than dramatic saturation. ## Take a useful pair Save one image of the whole colony and its placeme…
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A water change can replace part of the aquarium water, dilute some dissolved substances and replenish others. It does not automatically identify or remove the cause of a problem. ## Be clear about the purpose Routine maintenance, correction of a verified contaminant and managin…
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A brief weekly scan can catch changes you might otherwise miss. It is an observation habit, not a claim that all maintenance, testing and troubleshooting can be completed in ten minutes. ## Work through five areas - Animals: compare tissue, extension and behavior with their usu…
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Flowerpot-like polyps can look remarkably similar in a phone photograph. A useful comparison starts with tentacles and the colony, while recognizing what the image cannot show. ## A familiar distinguishing clue Reference guides commonly distinguish Alveopora polyps with 12 tent…
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A coral sold as an acan may have paperwork or older references using a different scientific name. Micromussa illustrates why it helps to keep the original label alongside a checked current identification. ## Names can be revised Taxonomic research has moved some familiar aquari…
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The mushroom corals sold under names such as Discosoma and Rhodactis are corallimorpharians. They are related cnidarians rather than simply small versions of skeleton-building stony corals. ## Start with the name A trade label, color or patterned oral disc does not guarantee a …
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Montipora colonies can show plating, branching, encrusting and mixed growth forms. A shape is a useful description, but a plate or a branch does not establish the genus or species on its own. ## Separate form from identity Photograph the overall colony and visible surface detai…
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Duncan coral is commonly associated with Duncanopsammia axifuga. Its conspicuous polyps make it an appealing subject for regular photographs, but a single moment of extension is only one observation. ## Notice the whole colony An open polyp can obscure the branching skeleton be…
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Some zoanthids and related palythoas can contain palytoxin. Appearance and a reassuring trade name cannot tell you that a colony is safe to handle or remove aggressively. ## Avoid the hazardous shortcuts Do not boil rocks or colonies, apply hot water, pressure-spray them, or us…
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A product labelled as a coral dip does not make every organism, life stage or disease risk disappear. Think of arrival care as a sequence of decisions supported by identification and observation. ## Start with a record Keep supplier information, best-supported identity, arrival…
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A repeat photograph is most useful when the conditions around the photograph are repeatable. Use this diary to document a concern without promising that every coral will recover on a schedule. ## Day 1: establish the record Choose one coral and save a clear whole-colony image p…
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The daytime view is only part of a coral's daily pattern. A short, quiet look after lights-out can reveal a different arrangement of tentacles and neighboring animals. ## Expect differences, not one universal pattern Some corals extend feeding tentacles more prominently at nigh…
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A reef can look dramatically different when its lighting changes from a broad white appearance to strong blue illumination. That visual change combines biology, lighting and the camera. ## Fluorescence needs incoming light Fluorescent molecules absorb light and emit some of tha…
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Similar movement and bright colors can make these corals look alike across a shop display. Start with visible structure, and keep the name provisional when the photograph is incomplete. ## Tentacle tips are a clue Torch corals commonly have long tentacles ending in single round…
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Soft coral, LPS and SPS are convenient aquarium labels. They can help start a conversation, but they are a poor substitute for knowing which animal you actually have. ## What the labels mean Stony corals build hard calcium-carbonate skeletons. LPS and SPS are informal hobby sho…
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A coral may stay in one place and look like an underwater flower, but its living tissue belongs to an animal. Learning to recognize the polyp changes how you look at both growth and stress. ## One animal, repeated A polyp has a mouth surrounded by tentacles. Many corals form co…
