I agree with Allmost. Every tank has Ich IMO, but will only host the fish when its weak or stressed for periods of time. BUT, if the Ich is bad then I say that you should take ALL of the fish out and QT them. After about 8 weeks(some will disagree with me here) all the Ich should be mostly out of your tank. No fish=No host for parasite.
GL man!
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-Justin
Those who say it cannot be done should not interrupt those who are already doing it.
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