It is self fragging. My devils claw does it on a regular basis...baby devils all over my tank now!!! You can cut it off or let it finish, either way has been fine for mine.
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Red Coral Online Store 
www.redcoralaquarium.net
45 Gallon Cube with 10 Gallon Sump, Lighting 8 bulb T5, Vertex IN 80 Skimmer
-2 Occelaris Clowns, Engineer Goby, RBTA, Peppermint Shrimp
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