Yes they are harmless
and they provide a great food source for all sorts of fish. Mandarin and dragonets particularly Keep him and hope he reproduces as much as he can
Shawn, it looks like your photo may be used to help others identify their animals. I think the Administrators might approach you for its use. The Hitchhikers Guide needs better pictures, you are the start.
Thanks everyone, I took ten pictures to finally get a good one, I used a magnafying glass and took the picture thru it. I would like to put it on the hitchhikers guide. Will the administrators contact me by e-mail or do I have to give them more info?