Lucy

I think you're right, it sure does look like he;s been nipped.
Are the other 5 ok together? I'd take the bully back and keep the 5.

Jonny_Maelstrom

Well, I'm down to five fish now and all has been well for about a month.... until today, when I came home to find the smallest fish has once again had a chunk of fin torn off. And it had hardly even grown back in the first place.
Once again, all but one of the fish is looking the worse for wear. I can keep taking bullies back, but everything I've read says they get more aggressive in smaller numbers. But having lots of them hasn't worked either.
To be blunt, I no longer want this breed of fish but don't much want to dump five aggressive fish on my LFS or anyone else. I couldn't recommend serpaes to anyone else, as all they ever seem to do is eat each other.

Lucy

I'm really sorry you've had problems. Did you ever mention if you had the long finned or the short finned?

After I bought mine, I read a lot of stories about how terrible the long fins are at nipping.

Mine are short finned, not in a proper school and have never nipped.
I guess it goes to show you, what works for one person may not work for another.

Good luck.

clairewood

Its normal. Two of mine have white on the tip and one doesn't. They came that way and are just fine!