Juvenile chevron tang (Ctenochaetus hawaiiensis)Tangs and surgeonfish are a diverse, beautiful, and often highly personable group of fish. It is no wonder that so many of us want to keep these fish in our systems. Inexperienced keepers do the right thing by going to their favorite forums and sites to ask which tangs can be kept, what size tank is appropriate, and how many they can keep in a particular system. Unfortunately, there has long been disagreement among certain hobbyists on precisely how to answer these questions—with some being much more restrictive than others when it comes to the species, tank sizes, and number of specimens recommended. In some instances, heated arguments occur as a result. Folks on both sides of the issue are generally well-meaning. Certainly neither side wants to bring harm to captive tangs. So why all the fuss then?An overlooked ailment I believe a good deal of the original disagreement actually stemmed from problems created by an unrelated group of ailments that few people at the time correctly identified
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