Good or bad snail.

[tosiek]

ok, so since i had my nerite snail in my tank i've noticed these white shallow mounds all over my rockwork and occationally my glass. They are ALL over. And i can't find out what they are besides people saying they are snail eggs of some sort.

Now I was looking around the tank and noticed this little guy moving across my rockwork near my rics, doesn't look like a pyramid snail, but does look a little like a sundial from the pics i seen, although my zoa's and softies are doing more than perfect, unless he's too small yet to be eating them.

The shape of the shell doesn't look like a nerite although it has the pattern of one. He's teensy, and if he was born in my tank, i am sure i'll have a bunch on the way soon. And if he's bad thats not a good thing.

 

[digitalreefer]

If it's a sundial get rid of it quick. They eat zoas slowly but will destroy colonies eventually. I've been monitoring one in a controlled enviornment for awhile now and it's slowly plowing through some zoas.

More info:
http://www.thesea.org/reef_aquarium/pests/pests_snails.php

 

[fritz]

Doesn't at all look like a sundial to me. The sundials that I had had a srark contrast, like a checkerboard. They had alternating white triangles and black triangles.

 

[digitalreefer]

Hard to tell if it is... can you get a better pic?

 

[DEEPWATER]

they are fine ,,,you should see about 1000 of them at night

Sundial snails are white with black makings ,these look like a off white with dark brown or tanish makings

 

[nanoreefer22]

They're good to keep. Like Ronen said they come out in large numbers at night. Definately not a sundial.