Limpets or?

[CloudReefer]

Hi guys, couple of ID requests here.

I'm pretty sure this first one here is a limpet I got in with my TBS live rock. Hoping it's a reef safe one!

The second pic I initially thought were limpets in my sump, however they are moving pretty fast and I'm wondering if these might be baby snails of some sort? Perhaps trochus? Not sure what they would be surviving on if they are trochus snails, as I do not light my sump and there is nothing but sponges, bacteria and such in there, no algae. I found two of these guys. I also linked to a video of the one in the sump as well if that helps.

Thanks!!

 

[EeyoreIsMySpiritAnimal]

First pic is a limpet-should be fine.
Can't play the video but the second pic looks suspiciously like a sundial snail. Look this up and see if it matches what you have.

 

[CloudReefer]

It doesn't look like any of the sundial pics I found. The pic I posted is a bit deceptive and makes it look kinda flat but it's got a pyramid shape like the trochus in the display.

 

[Court_Appointed_Hypeman]

It doesn't look like any of the sundial pics I found. The pic I posted is a bit deceptive and makes it look kinda flat but it's got a pyramid shape like the trochus in the display.

If it is pyramid shaped, it looks exactly like my baby trochus snails

 

[vetteguy53081]

Looks like a limpet snail

 

[kjkszpj9]

2nd one is a trochus histrio or a trochus radiatus im pretty sure, or could be any other kind of trochus. do you have any trochus snails currently that you added yo your tank?

 

[CloudReefer]

Here is an updated pic, mostly white light out of water. It's about 3mm at it's widest.

 

[CloudReefer]

2nd one is a trochus histrio or a trochus radiatus im pretty sure, or could be any other kind of trochus. do you have any trochus snails currently that you added yo your tank?

Yep I have 5 in my display