My betta has been biting his tail

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byuftbl

Aquarium Advice Newbie
Joined
Apr 15, 2011
Messages
6
I noticed that my betta had a rip in his tail about two days ago. It didn't seem to have any black or white rotted looking areas on it. Now it looks like he had torn his tail more so its half the length it was. None of his other fins are falling apart or have any clamping, strange coloring or rips. It's just his tail.

I saw him earlier spinning in circles looking like he's trying to chase his tail. I exercise him every day by putting a mirror in his water for a few minutes so he can flare at it, or stick my finger in the water and am in my room a good amount of the day lately, so I don't think he's bored. I don't know why he's suddenly started this habit. I'm hoping the water change will help, perhaps he was stressed, or it might have been the plastic plant-the plant has leaves fairly rounded but perhaps they were sharp enough to tear fins. So I replaced it with silk plants with no sharp edges.

Any idea why he might have started this? He's a healthy fish, is very active, has a variety of foods and eats them well, I keep his water clean, keep him entertained...but he's biting his tail apparently (since there seem to be no other sign of disease and his circling behavior i'm assuming he's nipping it)
 
Some bettas decide their tail is too long and heavy and trim it to help them swim better lol kinda like us trimming our hair when it gets heavy
 
Can you give us parameters of your tank, including water quality and size, tankmates, etc? It'll help us a lot!
 
Once you find out if it is your water and have ruled out diet, it might be boredom. I had an orange ping pong ball laying around and put that in my betta tank and it stopped ripping up its tail. It used the ball as a sparing partner. He was one of the most aggressive bettas I have ever owned.
 
Once you find out if it is your water and have ruled out diet, it might be boredom. I had an orange ping pong ball laying around and put that in my betta tank and it stopped ripping up its tail. It used the ball as a sparing partner. He was one of the most aggressive Betta's I have ever owned.

That's kind of cool.
We just got a Betta that was in a community tank. And now he is temporarily alone. So if we have a problem I know what to do, thanks to you.
 
I have 2 Fluval Chi's with Betta's and mounted 2x4" strips of Mirrored glass so he can swim over flare and impress the "fake" neighbor, since that no nipping between any of them, I assume he wants to look his best!
 
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