Snail ID

[FishyFishy!]

I have noticed a lot of eggs all over the glass lately. Today I noticed two different kinds of very tiny snails.

This one almost looks like a sundail snail.... But i'm not sure how to clarify. He was found nowhere near any zoas.

http://i24.photobucket.com/albums/c38/bilmaga/Mobile%20Uploads/2015-01-11%2018.24.43_zpscxvnzeqg.jpg (http://s24.photobucket.com/user/bilmaga/media/Mobile%20Uploads/2015-01-11%2018.24.43_zpscxvnzeqg.jpg.html)

http://i24.photobucket.com/albums/c38/bilmaga/Mobile%20Uploads/2015-01-11%2018.48.17_zpskpkum0xg.jpg (http://s24.photobucket.com/user/bilmaga/media/Mobile%20Uploads/2015-01-11%2018.48.17_zpskpkum0xg.jpg.html)

Also found a few of these guys. They have what looks to be a tube in the front. I thought they may be baby nassarius, but after some research, they are extremely rare to breed in an artificial habitat.

http://i24.photobucket.com/albums/c38/bilmaga/Mobile%20Uploads/2015-01-11%2018.49.13_zpsnhtbyl7c.jpg (http://s24.photobucket.com/user/bilmaga/media/Mobile%20Uploads/2015-01-11%2018.49.13_zpsnhtbyl7c.jpg.html)

http://i24.photobucket.com/albums/c38/bilmaga/Mobile%20Uploads/2015-01-11%2018.26.36_zps6luqf1ov.jpg (http://s24.photobucket.com/user/bilmaga/media/Mobile%20Uploads/2015-01-11%2018.26.36_zps6luqf1ov.jpg.html)

Anything I need to worry about??

[SeaHorse_Fanatic]

First one definitely looks like a sundial snail. Just to be safe, catch out all those ones and get rid of them IMO.

[Myka]

The first one is a Collonista Snail - harmless. The second with the tube as the front that you describe sounds like it may be a type of Whelk - which is usually not good.

Here is a Sundial snail:
http://www.wetwebmedia.com/MolluscPIX/Gastropods/Prosobranch%20PIX/Sundial.jpg
http://www.advancedaquarist.com/2003/2/inverts_album/Heliacus.jpg

[Ron99]

+1 to Collonista snail. I've always had bunch in my tanks that come out at night. Sundial snails have a more textured shell.