I have noticed the condition of the scales on my fairy wrasse getting worse and worse. You can really see it at the base of it's tail. So far It's still quite active and eating but the skin is not improving.
I'm not sure what could be going on. I had a canary wrasse who quickly perished after showing similar scale damage (like, within a day) and I'm worried for this guy. I'm not sure what could be causing this. I haven't observed any aggression from tank mates, but I do have a six line wrasse and I heard they're known for bullying. Do I need to set up a QT for it or something? I don't have any experience with medicating fish.
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