Any ideas?

[kelly]

I was looking in my tank this morning, and I have a few hundred of these on the front glass of the tank. Approx 1/16" in diameter.

thanks in advance

 

[flydan]

Hey,
My guess is copepods. Very good in any kind of marine tank. Don't know what kind of fishies you have, but a lot of them will eat copepods.
Dan'l

 

[burnnspy]

Good picture. I had them at one time too. I don't believe they are copepods. They may be egg sacks for copepods or a small worm though.
BurnNSpy

 

[orby]

I have had them before aswell and I always believed that they were the beginning form of aptasia anemones.