pest snails

Hi Guys lately i have seen in my salt water aquarium in the return tower this small dots i don’t know if they are eggs or small pests do i need them or do i scrape them off. The fish don’t seem to be interested. Sorry for the quality of the pictures it’s impossible to zoom close enough for the...

Got this snail i saw in my tank, tank just started up and is currently in the ugly stage

These snails are everywhere in my tank in all kinds of sizes and appear to only be active at night. Are they coral pests or beneficial hitch hikers?

Is this a sundial? The shell is not flat like pics of sundial snails. It’s shaped like my nerite snails in freshwater.

I've had a sudden explosion of these little guys (snails of some kind) in my frag/grow out tank. They have a similar shape to a conch shell, but the biggest I've seen as been maybe a centimeter in length, max. I can't find anything on the web about them either?! They seem to reproduce fairly...