Some Sort of Algae?

[Nanorock1970]

Started seeing this only a few places in my tank, now it is just about everywhere on my live rock.
I have Dwarf Ceriths, Nassarius vibex , Florida Ceriths, Antillean Nerite, Tongan Nassarius,Trochus snails, and two red hermit crabs.
I had Aptasia anemones when I first got my rock but my peppermint shrimp seamed to clear them out (during one of my nitrate spikes, he didn't make it)

Pest or no pest.....What is the remedy should it be a pest?

 

[Devin6871]

Look like some type of foraminiferans

Edit: Not a pest. Usually nonharmful and don't interfere with too much as they typically grow on dark sides of live rock.

 

[ReeferWarrant]

Can you take a clearer picture with the white light on only? I think it might be a type of algae, I want to say I had it growing in one of my chambers but my snails and hermits devoured it.

 

[Nanorock1970]

same spot in the tank with white light

 

[Nanorock1970]

They do sway with the current...they are white in color and so far do not seem to get very big at the moment but I feel like they are spreading around my tank.