I do weekly wc like any normal person. But it's like clock work it starts on the 4th day my red devil gets what looks like fungus. His fins won't open but he will still eat. All my other fish get sluggish and act wierd. Water params are fine. Ph is at 7. Ammonia is a little elevated but nothing to be worried about nitrites and nitrates are 0. The only thing I can think of is a large piece of driftwood I got from a local pond at the end of the summer. I washed it and took all the precautions but maybe it has something to do with it. Seems like it slowly started after I put it in. Here's a pic of my red devil as u can see on his eye and along his fins the white spots. The wierd thing is once I do a water change they instantly go away
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