Thanks jp I have the new life spectrum to thank for that. As of now no they did happen to pick off the rosy barbs, I had 3 rosy barb now I'm down to 1 but they don't seem to bother the 5 harlequins, 4 neons, 40 zebra danios and the 11 emerald corys. Other than the barbs all the fish were alive and well. What I did was made sure the whole tank is being used zebras stay top to mid, neons and harlequins stay in mid, and emerald corys on bottom. That way the pirayas are more at bay with the other fish than toward themselves, they still scuffle a little but not much. I'll try to take better pics when they're fired up.