What Is This

[draco]

We have these green sprouts(aprox 8 of them) they are about 2" long.We would like to know what they are.Also the brown spots around it are a type of slug. That is what they look like under the microscope if anyone could identify these it would be great to.

[saltwatermaniac]

The brown spots appear to be some sort of flat worm and for the the other thing i dont really know..!

[marie]

The green sprout is a calcium based algae called Neomeris annulata, it usually appears on new live rock and doesn't normally get out of hand.

[Ruth]

The brown spots sort of look like flatworms - not a good thing but treatable with flatworm exit - just follow the instructions. I am not sure what the green sprouts are but would guess some kind of algea.