Tail nipped off

[Geochurchi]

Have you tested your water?

Yes

If I did not test my water...

1. ...I recognize that I will likely be asked to do a test, and that water tests are critical for solving freshwater health problems.

Do you do water changes?

Yes

If I do not change my water...

1. ...I recognize that I will likely be recommended to do a water change, and water changes are critical for preventing future freshwater health problems.

Hi, will tail fins regrow after being nipped off?
Geo ??

 

[..puSkar..]

If it's a nip they'll probably grow within a few weeks, without any special treatment.
Post a picture if you can.

 

[Jexnell]

Depends on the extent of the damage. If just rips and tears, should heal up fine with good clean water. If damage is down into the base, could be permanent.

Pics would help.

 

[Rtc/tsn]

Hi, will tail fins regrow after being nipped off?
Geo ??

Yes, it should grow back as long a water quality is kept good and the damage isn’t too bad or continually being picked at in the same spot

 

[neutrino]

Some species might be better at it than others. Zebrafish have been studied for a lot of things and there's a lot of science literature out there about zebrafish caudal fin regeneration, with scientists studying the process on a cellular and biochemical level.

I had a betta once whose tail got chomped down to the base, took a little time but it grew back. Clean water is important, as mentioned, a little bit of salt and/or little bit of Melafix can help. Either or both can help prevent fungus and Melafix helps healing (no need for full does Melafix ime, I typically do something like 1/4 dose). Before Melafix, products with aloe were used, again it doesn't take much.

 

[neutrino]

The role of vitamin A was considered in this article

It is known that, the fish fin is the system of non-proliferating or slowly dividing tissue, but has a capacity for rapid cell proliferation in an emergency when partial amputation of the tissue is carried out (Hama, 1979).

 

[Deadeye]

What kind of fish?
My johanni cichlid had its tail torn down to the flesh by the others. They never finished him off and it grew back as nice as it did before.
On the other hand, a giant danio of mine had the bottom half of its tail fin torn off to the flesh by a piranha, and it never grew back, just healed over.
So it’s 100% up to the fish species and conditions it was in.