Brooklynella is a type of saltwater ich caused by an infestation of the ciliated protozoan Brooklynella hostilis. It is most closely and commonly associated with subfamily Clownfish members of the Damselfish family, and therefore is typically referred to as Clownfish Disease. Although this parasitic scourge similar to others requires a fish host to survive, it is not particular in its quest to find one. Angelfishes, tangs or surgeonfishes, wrasses, jawfishes, and seahorses among others will host Brooklynella.
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