Should I be worried about these small snails??

Hi,
Noticed since a week these small snails on the glass on my DT. Size is 1/10 of an inch for the biggest.
Should I remove them? There are plenty..
Thank you.

 

can you get another pick with its shell in it?

 

I have these as well (50+) the shell is a cap type by not like a limpet's it also has a rainbow color. I have not had any damage to any corals but I a suspecting they have been on my leather. I have tried to pick them off when the lights are off but they just pop off the shell and break apart. I will be taking some to my lfs today and see what he says.

 

Stomatellas, harmless algae eaters! actually quite benificial as they breed like crazy, saves you from buying snails.

 

I have so many, I have never bought a snail
;D

 

Yea... keep em.. 100's come out at night. Its all beneficial. Would be a mistake to remove em.