what is this?

[base13]

I have started seeing these small purple coral looking things growing on one of my rock. I know the picture isn't that good but they are about 1/10th inche small and look like very small corals? any ideas?

 

[Kurt_Nelson]

Foraminiferan.

Harmless little guys that will come and go.

 

[melosu58]

I agree with Kurt. Moving this to the ID forum.