When I read up on Marine Ich a while back I found a point that was interesting.
14. INTERESTING FIND: If no new MI is introduced into an infected aquarium, the MI already there continues to cycle through multiple generations until about 10 to 11 months when the MI has ‘worn itself out’ and becomes less infective. A tank can be free of an MI infestation if it is never exposed to new MI parasites for over 11 months.
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