They are probably not baby snail it sounds like collonista snails and that is as big as they get. They are common hitchhikers on live rock and benificial. They don't harm clams. Pyramidella (sp?) are the ones that harm clams.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.