Hundreds of tiny snails, good or bad?

clancaster23

Reefing newb
For a while now I have had a bunch of these tiny snails that mostly come out at night but I do see some out when the lights are on. Are they good or bad? If bad, any natural predators?
 

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Look at sundial snails. Those would be bad. There are good snails close looking to them but I really think they are sundials. Natural predator. .. look into non reef safe fish. Wrasse.
 
I'm thinking they look more like the collonista snails. All the ones I see have a light brown/white color and don't look anything like the sundials I have seen. I'm just surprised in the number of them. I have had smaller tanks and don't think I have had this many snails in any of them but this is a 180 and I got a ton. Guess it's a good thing.
 
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