My lungfish, about 5 years old, 90 gal tank by herself has some spots on her sides. The largest one is smaller than a dime, larger than a pea. There are 2 other spots that aren't that big. I have tried EM tablets with no effect, and primiflex with no results, decrease in size or healing. Although I can not touch them, one looks a bit ulcerated, or indented. I am doing a water change tomorrow, about 1/3. She has not eaten for a while, and developed these spots after she stopped eating. Not sure if that has anything to do with things. I don't know what else to try. I hope someone out there has some kind of solution, help or information on what I can do to help heal and get rid of whatever it is
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