Tang Lips and Clicking

cogreywolf

Member
This may be a silly question, but I have a question about Tangs. I have experienced this twice now. Every once in a while my tang will get a white mark on is lip. Definately not ich. Just kinda a white discoloration on the lip. Is this anything to be concerned about?
Lastly, I have been hearing a clicking in my tank every so often. At my LFS, I saw the mantis shrimp and when they fed him he made this same clicking noise. Whats the possibility of gettinga mantis shrimp off of live rock? Would the mantis shrimp come out during daylight hours or only night? I know they are very aggressive. Kinda worried.:confused:
 
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