Hello and welcome. My name is ***** ***** I’m a biologist with over 40 years of experience keeping fish. I’m sorry to hear about this problem. Fin rot is much more likely than him biting his own fins. Can you send me a picture of him? You can upload a photo by clicking on the paper clip icon in the toolbar at the top of the space where you type. Instructions should pop up. Thank you.
Thank you. I’ll take a look and be right back.
It would be very difficult for him to reach some of those fins to bite them, especially the one on his back. I also see a few white edges, which is another fin rot symptom. Even if something else happened to his fins, once they are injured, fin rot is likely to develop. I would treat for fin rot. It has become extremely common in bettas. Once it develops, it can become chronic and require treatment over and over.
You can try treating with something mild to begin with, such as Bettafix. If that doesn’t help, you’ll need to go to a stronger medication, such as Kanaplex. Here is an online source if you end up needing it:
Just got your new photo. Be right back.
That looks like fin rot to me.Fins don’t always turn black until it is very advanced. Because it can be so hard to treat, and you just got the fish, you may be able to return him. However, if you’re already attached, you’ll probably prefer to treat him. If you have more questions, just let me know. I’m glad to help.
Aquarium salt seldom works by itself. I would use it and Bettafix. They are safe to use together.
Since he’s alone, there’s no need to move him to a hospital tank. There are two reasons we use such a tank.One is not to subject other fish in a tank to medication they don’t need. The other is to cut down on in the cost of medication.
There is no need to change the water when using aquarium salt. Just don’t add more salt. Put it in just once. Then follow the instructions for the Bettafix regarding water changes.
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