I have 8 serpeas in a 5 gallon tank. At first I had 4 and then they where very aggressive. Then when I added 4 more it was only one that was aggressive if I removed him then none of the others where getting hurt. U should remove the aggressive ones then that should stop the nipping. i hope this helped!

I have 8 serpeas in a 5 gallon tank. At first I had 4 and then they were very aggressive. Then when I added 4 more, it was only one that was aggressive. When I removed him, none of the others where getting hurt.

You should remove the aggressive ones then that should stop the nipping. I hope this helped!

I have 6 serpeas in a 5 gallon tank. At first I had 4 and then they where very aggressive. Then when I added 4 more it was only one that was aggressive if I removed him then none of the others where getting hurt. U should remove the aggressive ones then that should stop the nipping

I have 8 serpeas in a 5 gallon tank. At first I had 4 and then they where very aggressive. Then when I added 4 more it was only one that was aggressive if I removed him then none of the others where getting hurt. U should remove the aggressive ones then that should stop the nipping. i hope this helped!