Help id a hitchhiker

[Nico2110]

I have not added anything to my tank in months and started seeing these in and on my Gyres. I have mixed reefs and need to know if they are good or bad. I did have a PO4 spike but since got it lower again.

 

[Gtinnel]

It looks like a stomatella snail to me. They’re a good guy but I would still not want them on my gyre pumps.

It’s easy for small snails to get stuck in the props of the pumps and they sometimes have to be removed. I don’t know if it’s less likely with stomatella but I used to get dwarf ceriths stuck in mine regularly.

 

[tzabor10]

Looks like a baby snail. Check for a beanie like shell on the back. Mine breed al the time.