I need advice! I got this dottyback a few weeks ago, and I saw some white patches on its side yesterday! Above its anal fin looks weird too. I just put it in a spare 5 gallon, and am planning on using kanaplex with 90 percent weekly water changes. Is this enough? Any idea what the cause is? This fish hid the day I put it in the tank, and I’ve only ever seen flashes of it. There are no tankmates. The corals and anemones look great, so I don’t think the parameters are off.