Are these harmless snails?

[addictedtoreefing]

Both came on coral have a small shell.

 

[addictedtoreefing]

better pics

 

[Tommy B]

Looks to me like you have some free stomatella snails. They are friends, Good CUC.

 

[PocketGoose]

Great little additions to the CUC!

 

[addictedtoreefing]

I thought the lighter one was just wasn't sure about the black.

 

[Sophie"s mom]

I agree with the others! Good CUC

 

[Tonycass12]

I thought the lighter one was just wasn't sure about the black.

The black one is for sure, they are a nocturnal species that you will rarely see unless the lights are out.

 

[kevgib67]

Good score! I bought six a month ago for my tank, yours are free.