Who ate my Coral Beauty's pectoral fin?

[paulcoates]

I just noticed the other day that someone tore of the left pectoral fin of my coral beauty. I have had some quite poor luck as of late with my tank as my Lawnmower Blenny and Longnose Hawkfish jumped out. Fortunately, I saved the Hawk. Also my Copperband that I had for about 2 weeks turned up dead. I have no idea why because he was eating fine and showed no signs of infections or illnesses. At any rate, here are my tank inhabitants. Who tore of his pectoral fin?
2 False Perculas
1 Yellow Tail Damsel
1 Longnose Hawkfish
1 Emerald Crab
1 now dead Copperband Butterfly

 

[paulcoates]

bump

 

[who dey]

got my money on the damsel!!! anti damsel police here!! :happy:

 

[red79]

I'd say damsel too. I had a blue devil damsel that use to bully everyone. ( My husband who has less knowledge than I of fish brought it home for my daughter.) Then we bought a flam angel and a coral beauty and they took care of him.

 

[paulcoates]

that is what i first though also, however I gotta say that the Damsel has been pretty docile from what I see in the tank.
However, that being said, I initially had 2 YT Damsels in there and I am pretty sure the one that is currently living in there killed the other one. Then I added two False Percula's and he has not been a bully since. In fact I dont ever see him interact with other fish.
I was thinking that maybe the Coral Beauty was in the rocks at night and the Emerald Crab snuck up on him, clamped down on his pectoral fin and the CB took off without his fin