I would recommend no water changes when treating Ich unless you absolutely had to because of some other parameters being dangerously out of whack.
If you do have to do water changes make sure the water is at least as hot as the water in the tank.
Unless you have extremely nitrate sensitive fish I would let it ride during an Ich treatment.Would say 30 nitrates call for a pwc? Was about 20 nitrates 2 days ago
I was doing some water changes, 2 a week.
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