Achieving maximum polyp expansion is super desirable for coral keepers everywhere.   Nice skeleton colors are not enough we want to see those tentacles waving too! Softies and LPS corals of course are the easiest corals to achieve optimal polyp expansion if those corals are healthy with appropriate lighting, stable and high quality water- you’re […]

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Did you know pests, predators or diseases don’t actually cause most of the common problems with corals?   In fact pests, predators and diseases are usually not the reason your polyps wont expand, your corals stop growing and your prized coral is starting to turn to slime…   Before I tell you what is, I […]

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Figuring out what is wrong with your coral can seem like a daunting task…   Fish are much easier to diagnose because they exhibit many different physical and behavioral symptoms. But corals just sit there and look very sad indeed. In fact, a lot of coral problems simply resemble coral tissue turning into slime to […]

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Problems with corals and sessile inverts are notoriously hard to diagnose…   Here’s my quick guide of how to diagnose symptoms of ill health and correct the problem. Fish usually display obvious symptoms specific to a particular problem. But sessile invertebrates (ones attached to the substrate for example corals and anemones) most often do not! […]

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Love SPS corals in your reef? Have Acropora species? You should really be on the lookout for this nasty… Acropora “Red Bugs”: The dreaded red bugs, these tiny pests are thought to be copepods and only infest small polyped stony corals (SPS) of the genus Acropora. Red bugs are like a flea or mite infection […]

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If there are very few illness symptoms, but a lot of possible causes how can you know what’s wrong?   It’s no secret that non-moving or sessile (attached to the substrate) saltwater aquarium invertebrates are notorious for being difficult to diagnose if things go wrong, this is especially true for photosynthetic anemones and corals. Often […]

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Flatworms covering corals in saltwater aquariums can be a real pain, especially when they multiply to near epidemic proportions or start feasting on your favourite Acropora specimen… Most flatworms are actually beneficial to your tanks eco-system. But, there are 2 main groups of flatworms that you do not want in your aquarium… The first group […]

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Hey saltwater aquarium fans, Compared to saltwater aquarium fishes coral problems can be much more difficult to identify and diagnose. Even in the wild not much is known about coral diseases, what causes them and how to cure them. As luck would have it (or not) most coral problems are caused by poor water quality […]

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