Are these harmless?

[PoorReefer]

I have recently started seeing these tiny snail like creatures on my sand bed and glass. LOTS OF THEM. Do they pose a risk to my corals?

 

[Quietman]

Dwarf cerith maybe. If so, beneficial as it eats most everything except corals.

 

[Mattyreefs]

Or dwarf planaxis

 

[TnFishwater98]

Do they look like clams or snails? Hard to tell the actual shape in these pics. Both should be harmless just wondering

 

[PoorReefer]

They look like snails with a conical shell. I didn't have cerith snails before. These little things are all over my sand bed

 

[PoorReefer]

 

[PoorReefer]

That's just a few of them

 

[vetteguy53081]

Good snail and good algae eater active more in the evening/night

 

[monkeyCmonkeyDo]

As long as they arent pyramid snails.
D

 

[PoorReefer]

Thank you for the assistance everyone.