Wish I had a picture... Oh wait I do. But either the site has a brainfart with all my older photos or the photos are wacked because of IHAVENOIDEAWHY. ;(
Anyways... Veiltail male. 10 gallon tank, fabric plants, no substrate. Filtered and heated, he also had a little cave to chill in (which he did use). I used lights for 10-12 hours, the other 12 (night) they were off. He began tail biting... I tried to rearrange décor, add new stuff, take away certain stuff... No. It got WORSE. Almost NO tail left.
To avoid infections, and to keep an eye on him, I stuck him in a heated 1 gallon with sand substrate and one silk plant (also had a light ontop). Guess who stopped tail biting? -facepalm- Meant more water changes for me.
Another one hated isolation. He was my bedroom betta. Chewed up his pretty yellow fins. I moved him upstairs in a high traffic area (area between living room and kitchen) and he stopped chewing his fins.
All in all I try the following for biters:
- remove from divided tanks.
- different sized tanks (bigger or smaller)
- change the external environment (bedroom VS kitchen VS living room)
- change or remove ornaments
- rearrange ornaments
- up water changes
- change water change routine (leaving in the tank VS removing)
- remove/baffle/add filter
- add/remove/change substrate
- put IN a divided tank (I had one tail bite when he was no longer in a divided tank)
- see if blackwater extract/IAL helped.
- remove or put into a community tank.
- cram the tank full of live, fabric, silk plants... (never know, they could be bored!)
- exercise more often with mirrors...
The list can be endless