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An effective way to clear Ich from a fish population is to transfer all of the fish carrying trophonts in their skin, fins or gills to a non-infected tank every 24 hours. Then the fish do not get re-infected and after a number of days (dependent on temperature) the fish have cleared the infection because trophonts exit within this period.
The primary cause of an Ich outbreak is usually stress, which can result from factors such as poor water quality, sudden temperature changes, or the introduction of new fish without proper quarantine. [6] To treat Ich, increasing the aquarium's temperature gradually to 78–86 °F (25–30 °C) for a few days can speed up the parasite's life cycle.
However, the natural hosts of the pathogen are a wide variety of marine fish (Romalde & Magariños, 1997) [incomplete short citation]. This pathology is temperature dependent and occurs usually when water temperatures rise above 18-20 °C.
The popularity of such raw fish dishes makes it important for consumers to be aware of this risk. Raw fish should be frozen to an internal temperature of −20 °C (−4 °F) for at least seven days to kill parasites. It is important to be aware that home freezers may not be cold enough to kill parasites. [67] [68]
In February 2008, the U.S. Food and Drug Administration (FDA) traced several outbreaks to the Flower Garden Banks National Marine Sanctuary in the northern Gulf of Mexico, near the Texas–Louisiana shoreline. The FDA advised seafood processors that ciguatera poisoning was reasonably likely to occur from eating several species of fish caught as ...
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Bathing fish with hydrogen peroxide (350–500 mg/L for 20 min) will remove mobile sea lice from fish. It is environmentally friendly since H 2 O 2 dissociates to water and oxygen, but can be toxic to fish, depending on water temperature, as well as to operators. [ 61 ]