I'm looking to get another betta and there's one I like the colours of, but it looks like one of the rays on his dorsal fin is snapped/broken. Is this something that would mend, or is it likely to be a permanent defect? Thanks.
It will definitely heal, given good water clarity and parameters. Do water changes, aquarium salt if you feel it is necessary, and it shall return to as normal as can be. It may not be 100% perfect, but it will be very close.
It isn't a missing or torn fin, the ray is snapped in two, as if you got a flower stem and snapped it. It's broken and bent, not missing. That's why I can't understand how it could fix itself to be straight again.
Originally Posted by xxabc
SENIOR MEMBER! YEAH! This marks my 1000th comment.
I can't say for sure. My betta went through the same thing. I can't say I saw it fall off, but all I know is that it's healed. It wasn't too long ago either, it only took a couple of days to make me notice that it's healed.