

I just noticed this today…is this fin rot? I’ve cared for bettas before and I’ve never seen something like this. Did the best I could taking these photos he kept moving lol thank you in advance for your help!
https://www.reddit.com/gallery/1ocawow
Posted by drpeppercutie
1 Comment
Tank size: 5 gal
Heater & filter: yes
Parameters: unable to measure at the moment
How long have I had the tank?: maybe 4 years?
How long have I had the fish? A little over 2 years
How often are water changes: every 4 weeks
No tank mates
I feed pellets & worm shaped bites
Decor yes, real plants no