Pink Skunk biting GBTA

modulok

Active Member
Last night after lights out I looked in the tank with a flashlight. When it stopped over the clownfish in his nem I saw him biting on a few of the tips of the nem (almost like a baby teething) I noticed the tips looked a little beat up as well. I have had the clownfish since Nov 2011, and the GBTA since July 2012.

Is this normal? Is there anything I can do to prevent this?
 
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