Hello; I seem to recall that fisheries biologists would notch fins on hatchery fish to be released into the wild. .
oh and i dont mean cut the whole fin off, to be more clear its probably about half an inch before the kink appears. i would just have to cut through the bones that go through the fin. I wont do it anyway. it would cause too much bother.
"its just a bother" lol.. dont worry about the fact that your severing a bone from a living creature fully capable of feeling pain. Im not against it i just think that was funny lol
Maybe not in the fins themselves, but in the bones, yes.
And saying that it's just the fins doesnt really fix it, everyone has lost a fish from nipped fins, wether it's from stress or infection.
Don't do it. Sell your fish if its appearance bothers you so much.