I saw two white dots on one fish a couple days ago so I thought it was ich and upped the temp to 85-86. Well the dots come and go on just the one fish and it's only one or two at a time. Is this not ich? I tried to get a pic but she is so fast. This is the only one out of a lot that you can see it. This time it's on the tip of her lyrtail. The top lyrtail has been missing since I got her a month ago and it's been healing and growing well.