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Hey guys,

I have some feather dusters in my tank, and as of late one of them split into two. I was quite happy since they are pretty much some of the first visible hitchhikers other than the brittle stars and some other guys.

However, i looked into the tank today and noticed that one of them ( the biggest one ) seems to have closed it's main hole ( the section of the tube that it comes out of ).

Is this normal? What's happening?
________
Honda RC145

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Nevermind, it opened up. Looks good.
________
Honda GL1500A

good to hear. They will close up here and there, especially if they get spooked. It is normal.

I was lucky enough to get a few hitchhiking with my rock as well. They tend to pop in and out on a regular basis. I notice at night when I shine the flashlight in the tank they quickly pop back in they're hole when the light reaches them.