ID please

[northcoastdiver]

I just had my tank crash on me and I lost my SPS but anyway since then I have seen these little guys popping up and I have no idea what they are. They are the little green things at the bottom of the picture, and I posted them here because I thought they might be like those little tube snails. The little shaft is flexible and they are really starting to multiply which usually is not a good thing. Lol. Thanks in advance.

<a href="http://s526.photobucket.com/albums/cc343/fulltimesav/Fish%20stuff/?action=view&current=photo-4.jpg" target="_blank"><img src="http://i526.photobucket.com/albums/cc343/fulltimesav/Fish%20stuff/photo-4.jpg" border="0" alt="what is this?"></a>

 

[Elysia]

It algae -- no need to worry. At least you know that your system has enough calcium.

 

[LeslieH]

Green algae in the genus Neomeris. N. annulata seems to be the most common species in tanks. They can spread rapidly & take over tanks. You'll probably find information on how to control them by doing a search here on RC.

 

[northcoastdiver]

Thanks for the info guys I will look that up. I would still really love to know why my tank crashed. I posed a thread about it on here a couple weeks ago but no one really had an idea what was going on. I guess that's why they call it a practice right? At least when I fail I like to know why.