I need help IDing this! PLEASE!

[Cecily]

+1 Barnacle... They come in as hitchhikers... They are kind of cool. If you have enough food in your water column you can keep them alive. They won't hurt a thing.

Thank you so much! I'll give them a chance.. Maybe even a name. I was just sitting there watching it earlier.. It was definitely cool to focus on it and see it getting little particles out of the water. I'm happy it's not a pest or problem!

 

[poidog]

very neat

 

[Herbie]

That was the first sign of life I had in my tank and I have several that are still fanning away.