Can fins tear from flaring too much?

[Amphibianite]

I have to ask this question.
Can better rip their fins from flaring too much?
I have an SD boy whose anal fin looks like some one took a razor too and tried to turn him into a CT. The only thing I can think is he has torn it from flaring too much. He has been going like made this last week or so since I moved him to a new spot.
There are no sharp plants or decor in his tank for his fins to get snagged on, so the only thing I can think is the flaring.
I haven't personally seen this before.

[dramaqueen]

If they have pretty heavy finnage then yes, they can blow their fins from too much flaring.

[indjo]

If it's shreded, he most probably bit and sort of chewed it. Flaring, specially when exercised regularly will not tear his fins. Only previously clamped fins may tear during flaring but not shred.

[Olympia]

I think it can damage their beard if they flare too much. Like make it sore. That's why you don't want to make them flare a lot anyways (which is annoying because my boy flares at me all the time -__-)

[Silverfang]

yep, or it could be fin biting