What it Means if Your Fish is Swimming Erratically Fish make beautiful pets that absolutely keep us entertained, but when their swimming habits change or become erratic it can cause us to wonder: “Is that normal?” Fish swimming in circles, up and down, backward and other consistent swim patterns are among the behaviors you may observe of your aquatic life at some point, and understanding them will help you know when things are perfectly normal, and when there is cause for concern. Signs and symptoms of your fish swimming erratically The behavior: Rubbing or banging against items in their tank What it could mean: If you’ve noticed that your fish seems to be rubbing or banging against things in their aquarium frequently, they could be displaying what’s known as “flashing,” or “itchy fish.” As the name implies, a fish that’s constantly banging up against things in their aquarium could actually be trying to scratch themselves. There are a number of reasons they could be d...
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